Fork offset vs rake reddit. Rake and Trail: Clarifying the Distinctions.

Fork offset vs rake reddit I replaced a Surly Pacer fork (AC 376, offset 45) on an older Salsa La Raza with a VO Champs Elysee fork (AC 380 offset 65). Offsetting the fork more (increasing offset) pushes the axle further in front of the head angle. Funny thing is that I think I would have to reverse the offset if I added rake. Pretty much done with it, but wondering if swapping out the fork is an upgrade that will be worth the price difference and noticeable for a newer rider. I need to keep it to 150mm travel. 66d and 40mm), defining the bike more by WB and travel rather than HA. It is a factor, that when combined with wheel diameter and head angle determine the mechanical trail, which is what affects the perceived steering speed. In my limited experience it's a change you can feel as much as a 10mm fork length change. The reason rake is needed is that if there were none, the wheel would essentially go where ever it wanted and the bike would be unstable. 5in forks). 50, but how about 45 vs. g. The more offset your fork has the smoother the ride. The fork offset on the stock LHT fork is 45mm. 9° head angle combined with a 44mm offset fork has the same amount of trail as a bike with a 64. Knowing and caring about fork offset is the new wheel size "debate" for people who don't get to ride as much as they'd like. I went from a 51mm offset fork to a 44mm and noticed quicker steering and a more nimble feel. Measure from there to the center of the front hub, and you've got the fork offset. I believe that is fairly key to the current bikes stability. Rake and Trail: Clarifying the Distinctions. Get the Reddit app Scan this QR code to download the app now Another fork question - 44mm offset vs 51mm on a 65° head angle with 140mm travel. Rake is the angle of the line from the axle of the front wheel to the crown of the front fork. Dec 17, 2013 · Why fork makers offer a different offset for 26, 27. It will also affect the running smoothness of your bike. 5” bikes traditionally use 44-46mm offset forks). Dec 24, 2019 · IMO, if I were spec'ing bikes, I'd choose to simplify sizing to two choices, and make the smaller size bike have a slacker HA with longer fork offset (e. This is due to the axel being offset backwards from the front pivot point of the "forks". Reply reply bluemax_137 I've decided on getting a new fork. In fact, I went back and forth a couple of times. Rake or fork offset on its own does not influence the steering speed. 5. Doing some reviews of cheap Chinese forks and other components. Your current fork at 395mm is non suspension corrected, thats how long forks were in the early 1990s. Your offset value adds/removes from that. I need a fork with more offset/less trail so my… Kinda depends on the travel and hta. I'm not an expert but my understanding is that all forks have an offset (rake) that pitches the front wheel further forward than if the fork followed a straight line down from the head tube. Fork Rake – Offset that places the fork ends ahead of the steering axis. They feel fine at high speed but the flop over at low speed is brutal on the slacker than 67*ish bikes. Fork rake (offset) The fork offset also known as fork rake is the perpendicular distance between the steering axis and the front axle (the center of the front wheel). But just that small offset number alone isn't going to feel much different. So I have to choose between 2mm more offset, or 3mm less. I didn’t realize that my wife’s current fork had an obscure A-C length until I compared the two forms as noted in the picture. One thing to consider is the fork offset or rake. Only issue is that I have OCD and seeing the minor gap between fork and bike feels strange Would the ride feel or functionality be significantly different if I get a fork with 45mm rake and every other dimension of the fork remains identical? Personally I love lots of offset in general, I just like how 60mm offset forks ride overall. I've noticed that some of these forks have a few different offset options. 5” models using reduced 37mm offset forks (27. 75 deg Head Angle, 55mm Fork Offset, 69. Especially if you're coming off a steel or aluminum fork to a carbon one. I don't totally understand why I couldn't go because 42mm without really ruining my handling, but many people told me to go no shorter. The bike has a headtube angle of 72 degrees. This affects trail (the distance between front tire contact patch and the point on ground if you drew a straight line from the head I’m riding a 2019 Stumpy 29 with a 160mm fox 36 with an offset of 51mm. 5 in a while, but I run 44mm offset on my 29ers vs the 51mm . I weigh about 220 lbs, if that matters much. My bike came with a 46mm offset fork, should I opt for a slightly shorter offset, like 44mm? Put simply, if all other parameters for steering geometry remain the same, less offset equals more trail, and more offset equals less trail. Offset was really hyped by the companies that slept on slack head angles and steep seat angles as a way to look innovative. Fork Geometry Calculator Tools: Enter 3 of the 4 values below to calculate the 4th. I've got a State Bicycle Company carbon fork on my Midnight Special. Doesnt this mean i would have to adjust the position of the brake caliper? Or is the caliper mount already adjusted on the new fork itself. With a range of steerer angle between 72. 0: Offset 45mm, AC 396mm, weight 495g BROTHER CARBON GRAVEL FORK V2: Offset 47/52mm, AC 398mm, weight 550g Lynskey Carbon Adventure Fork: Offset 45mm, AC 395mm, weight 553g State Bicycle Co. No. These various approaches work to make bikes with a different ride feel, and there’s no right answer. 5 or 700/29" wheel/tire. While some manufacturers do the work of stating a max tire size for each wheel diameter, most only So my "expert" opinion is that the REAL experts will need to know the rake (fork angle) and even the wheel base length of your frame in order to recommend a proper offset so that your bike has the correct TRAIL. I definitely prefer to ride street than other stuff, and i like techy stuff rather than big stuff, but I also like going fakie and I am also new to the sport (but I come from street-trials, so I am picking UPDATE 2022-05-02: For anyone who finds this, they might find my experience useful. You can offset more rake with more A-C and vice versa) Tire clearance - Most 26" forks can accommodate a 650b/27. Steepening the head angle will bring the wheel closer to the rider The purpose behind a fork not going straight down is to achieve a certain degree of rake. 5° head angle and a 51mm offset. You can get an idea of how it'll handle with such changes but stik have to think of bb height and were your new center of gravity will be. I want… If the Fork rake/offset and/or fork length are different than the original it will change the way your bike handles. I went from a 44mm offset pike (29er) on one bike to a 46mm offset (27. Another thing which has evolved to make bikes work better on even more parts of your ride. Rake/Offset - ideally you stick to less than 5mm change in rake/offset. The most common offset for 29ers’ forks is 51mm (compared to 44-46mm for 27. You'd probably be fine either way but I like to stick with manufacturers design intent unless I know I want to change a feeling. 3 with R32 or Blade fork. It's an old steel road bike so it will be a threaded to threadless conversion as well. While fork offset influences a bike’s handling, it is distinct from rake and trail. I’m looking at swapping the frame with a new Stumpjumper Evo, which is spec’d… Rodeo Labs Spork 3. Dec 24, 2019 · Fork offset counteracts the effects of slack HA and larger wheel size on steering. Surly's website says the stock MS fork is 1254 grams/2. Lots of Marzocchi Z2s, Fox 34s, some Pikes and other decent forks out there in the $350-$500 range. I am thinking about replacing the fork on my bike soon, and the fork that I'm looking at (Enve Road 2. 1lbs. Putting a new fork on and have the option of a 43 or 50 offset. The geometry change is so minute you likely won’t notice it. Putting the wheel in front of the forks will decrease trail. Current front fork is a Recon RL with 130mm of travel. My road bike is equipped with a frame / fork that has a 43 degree rake. Hardtail. This all sounds a bit convoluted, but what they mean is that a 65. That's how I felt on my Boardman ADV 8. Pro reviewers have gone back and forth between 44mm and 51mm and the consensus was they couldn't even tell. More rake will make the steering quicker, but is not the only determining factor. Decreasing this distance by putting a negative OffSet value generally: Offset vs Drum / Kettle The age old question. Jul 15, 2020 · The shorter offset is more stable and holds its line better. I went this length because of the fork offset numbers, trying to match those up. I need a 700c fork with fender eyelets. May 13, 2023 · In my humble opinion, very few people would notice an offset difference in their fork. Specialized and Orbea spring to Just draw out your rake, trail and offset. 9 gravel bike, but that's got very different geo. Longer and slacker your want tihe shorter. Many trail and enduro bikes are now designed around reduced 42-44mm offset forks. But often, that fork with a different offset will often have a different axle to crown measurement. Changing to a 20mm offset fork would add a lot of trail to the bike. So a 44mm offset fork would increase trail and make the bike more stable. -L I don't expect them to be eye for an eye situation, however, can you somewhat compensate the handling instability from short stem with larger rake on the fork? I've been messing around with an old bike I had for a friend and ended up with a stubbier stem (50mm, +17deg) from its longer original frame(110mm, +6deg). Assuming you’re using a Pike and moving to a Fox 34/6, you’ll notice the difference in fork way more than the geometry change. Offset is more like the distance between a line going through the axle parallel to a line going through the headstock. I think it would feel different for about 10 seconds, and then you automatically adjust and ride as normal. They also move to a DPX shock for this build. 5” wheels Feb 27, 2011 · Fixed trail geometry uses long rake forks on the smallest sizes, increasing front center and decreasing toeclip overlap, and short rake forks on large sizes which shortens the wheelbase. Would 51mm work, or would it throw off the geometry? Thanks Get the Reddit app Scan this QR code to download the app now. This is assuming its the same travel. which The Fargo has a short top tube, so I'm also wondering if shorter offset/rake would make me feel too much over the front wheel. 44mm vs. I found a good deal for 2020 lyrik ultimate and what concerns me is that my current fork has 51mm offset and the lyrik has 42mm offset. Mar 19, 2017 · Fork offset. Fork offset is one aspect of many things that make a bike feel a certain way. A bit lighter in the front and a bit snappier with slightly less rake then the stock fork. Almost all new 1" steerer carbon forks I could find have a 45mm offset, some are less but those are mostly track forks (no brake caliper hole). Trail is the combination of rake (angular) and offset (fixed distance) at rest measured with full rider weight on the bike. Right now the 51mm offset forks are on crazy sale––almost half off in some cases. As a preface and disclaimer I'll say that like many or most of us I've spent an inordinate amount of time on YouTube trying to assess the differences and the merits. Specialized puts a Rockshox Judy with 46mm offset on the 2021 Rockhopper Elite 29er which is the same frame/geometry as my bike. It's not going to change your life or anything but neither would a degree of head tube angle or a 10mm longer stemwhich is roughly about the magnitude of change we're talking about. They spec their 29ers with 46mm offset forks. My current bike has a 51mm offset fork. Koga appears to have several models with stock forks with a rake of 45mm, and a lot of forks are in the 43-47mm rake ballpark, but as stated above, changing rake by 5mm can have a noticeable effect. which will have an effect on handling ) I've got a new frame and it came with a really shitty fork. State's website says the Monster Fork is 510 grams/1. My question comes with my stem length. Some fixed gear bikes, especially some track bikes have very little offset in their forks, which allows for quicker steering movements. Head Tube Angle – The angle that the frame holds the fork in relation to the ground (also called steering angle). Offset in combo with slack head tube and longer reach makes a huge difference. Guillem Atalya frame and I am planning to run it with an Enve gravel fork. 18mm Trail 70. As for the XLC fork, I can't find a Rake measurement. My current bike (with the stock 150mm fork) has a 67° head tube angle, and the fork has a 42mm offset. . This means I was on a short offset fork for the 29 and a longer offset fork for the 27. Not sure why you'd want to go with a 51mm offset fork. 4mm of offset isn't going to make or break your bike. 51mm rake, Kabolt Axle 15 * 110 Boost heres what the seller posted or should i just be big brain and slap a lyrik decal on a yari fork because they use the same chassis lol + dont tell me to do the damper upgrade or whatever that is im asking yari vs fox 36 rythm edit: nah nvm damper upgrade is an option Hey all! Please help me decide between 25 and 28 mm offset. It comes in two rake options. That usually translates to a bike that feels like the front end wants to stay going in a straight line. Putting it rear of increases trail. 5in forks. I changed my stem from a 50mm to a 42mm. 5 degree head tube angle? Thinking, Fit Mixtape V. I'm a bit worried that going 51mm will make the bike too long so I'm considering sticking with 44mm. 5 or 29 version. It came with a 50mm stem but it felt too roomy and I opted to get a 35mm stem. Without knowing the head angle of the bike you have, I can't tell you how changing the fork rake to 50mm will feel. My bike has a headtube angle of 71. Next! Travel, basically how far your suspension can move. Lots of good info out there. Next is the offset, there are a few, I know there is a 51mm rake, and a few more, this pretty much is an additional length your front hub is away from your fork. Along with the low/long/slack movement, it seems the whole industry is moving to 44mm offset forks. The "mechanical trail" is the main figure that's being modified by this fork offset choice. I already bought a enve fork with 50mm rake that is 1. A 2mm change is already pretty big - 10%. Just bought some Bucklos 120mm air forks from Amazon for $130 + tax. It's generally best to only replace a fork with one that has the same axle to crown length and rake. Long story short, the further the rake is out from the headset/crown, the better the bike will track in a straight line (think high speed downhill); the feeli Fork Offset vs. (but see above and the calcs below. The difference is so minute that unless you run them back to back you won’t tell, and even then it’s a very subtle difference most can’t discern. This is the offset between your wheel axle and the centre of the fork. Hi there! i have a 2018 hightower LT with 150mm rockshox revelation. As for Fit4 vs Grip2 I have ridden both and the Fit4 definitely has a firmer racier feel. Reduced offset is less common for 27. iirc, longer offset forks were created for 29ers to make them a bit easier to turn to make up for increased trail witch makes them more stable but a bit more of a pain in tight switch backs. Jun 12, 2021 · In theory, the 51 should have been better at navigating slow speeds on tight trails, etc. 5+ wheels with 120mm of travel and I swap my wheels out for 29ers along with a 140mm fork, should the 140mm fork have a 51mm offset to compensate for the larger wheels and slacker head angle which both increase trail? The bike is specced with the same rake regardless of whether its the 27. The bike is built for 44mm rake and the frame is an XL. Looking to upgrade from coil fork to air fork. They are just made of lesser quality materials but surprisingly not low quality materials and no plastics. Longer rake seems to be better for the bikepacking style of off-roading. 0) comes in a variety of different rakes. Don't do it, as well as the overall height of the fork the rake is also different. I'm currently specing a waltly titanium frame for 70%road commuting and 30% gravel (not single trail stuff). Just a few small scratches. I've got a used Trek 520 almost for free, bur its fork is totaled. 51mm offset forks: My experience. 43 offset fork gives me 66mm trail. Which rake measurement should I choose? Im confusing myself looking at the numbers and honestly having a hard time understanding the measurements. I double-checked everything else and other parts are as good as new. 7lbs. I'm contemplating replacing my alloy fork for a carbon one. ? Thanks in advance I want to put the ENVE gravel disc fork (NOT the adventure fork with the flip chip). Choosing a fork with less offset would decrease your wheel base, more offset would increase it. This has two effects. Granted, it's a downcountry bike naturally it has good climbing characteristics. 21mm Trail If a frame design is running into toe overlap issues with the specific rider, then I focus on the front end of the bike and how best to eliminate it. Am I SOL on finding a fork that will work with my wife’s bike. Look up rake and trail. Stock fork is probably around 45mm rake. Will this make a drastic difference? It's just a Trek Marlin 6, but not looking to upgrade to a $3000+ full sus bike for another year or two, so seems like a worthwhile upgrade for $300. So if i ride a different offset, the wheel and the brake disk move for or backwards. More fork offset is like steepening a HA, or shrinking the wheel size, in terms of steering feel. It's the distance between the fork and the steering axis. What kind of changes in handling/ride characteristics would I see if I swapped the fork for one with a 45 or 43mm rake? I'm looking to upgrade my fork to a Fox 36. 11 Carbon Fork: Offset 48mm, AC 395mm, weight 460g Fork offset is the measured distance from the steering axis to the mounting point of the front wheel. 5 and 29-inch wheels. Cops flagged her down and have now the financial opportunity to upgrade my fork. 47mm or 50mm. It should be the same number, I'd guess the geo chart is a typo since I don't know any forks that come with a 55mm offset. The Troll is the better choice, it will be closer to the factory fork. The balance of rake and trail is always a funny one - The Y-Cycle is a good example. 50? 2mm is not much of a difference but I can tell you from experience, 5mm of fork rake is significant. Reducing the offset — which is what many bike designers are doing today — pulls the axle closer. 50 offset fork gives me 58mm trail. What happens when you put a different fork on than what the frame was designed for? Sep 20, 2021 · In simplest terms, a shorter fork offset increases the trail measurement of the fork. But guess what, a higher/lower offset willmess with your bikes geometry!(2). In the graph below, the fork offset is in blue. In my humble opinion, very few people would notice an offset difference in their fork. Nor have I experienced more wheel flop on climbs with the 51. The fork offset will also have other effects on the handling, mainly on the trail of the bike. Is it noticeable? Maybe, but I don't think it matters that much, especially on the 27. Carbon Monster Gravel Fork: Offset 45mm, AC 396. 3 and 74, optimal neutral trail rakes run between 50 and 40mm, keeping the wheelbase range smaller by nearly 1cm more The comparison between straight and curved forks requires an explanation of a few basic terms describing the geometry of a bicycle: 1. They are the same, except for the stickers and the 3 mm offset difference. The fork I am looking at (MRP Ribbon if you are wondering) comes with either a 44mm or 39mm offset options. The fork I purchased has a 43mm rake and 378 A-C length. Most bikes have a default value between 22 and 25mm stock. It's hard to describe exactly. The difference was noticeable but after one ride felt totally natural. Can be achieved through moving the axle, or offsetting the forks. By the late 1990s, many manufacturers were equipping bikes with suspension corrected forks around 420mm long. It does so by way of increasing the distance between the tire’s traction patch on the ground and the point where the steering axis line intersects the ground. But should they? There are some bike brands don’t follow the 51mm-is-best tenet. Even if the travel remains the same. Thanks! Posted by u/natasllik - 4 votes and 4 comments If my current fork offset is 44mm on 27. A 160 fork would put it at around a 65. Each time there was an immediately obvious change that very quickly felt back to normal. Wouldn't be the first time Cannondale didn't proofread their website, might be worth shooting them an email off their contact form to have them clarify and update it. 6'3 on an XL frame and I moved from a 50mm, down to a 40mm stem and its the perfect balance on a 44mm offset fork. But perhaps on a rough and intense mountain bike, having the front end try to haul all over the place isn't the fastest way to shred. 7mm, weight 510g Veloci No. 25" tapered. I am going for the fox 40 this black friday and need to know what the rake / offset of the sur ron is. In this video, we clear the confusion and take an in-depth look at what fork offset is and how it will affect your ride. Or check it out in the app stores Home; Popular; TOPICS 38mm vs 46mm fork offset on 27. I have a 2021 Rockhopper Sport 29er with an SR XCM coil fork and wanted to upgrade to an air fork. How adversely is my geometry going to be affected by the shorter stem and lower fork offset? Am I better off leaving the old stem on? Does it just come down to preference? Cheers! What fork offset would you say is more optimal for a bike that is used for both road (700c wheels) and gravel (650b wheels) riding, 45mm or 50mm? I have a bike with a stock fork that is 50mm and looking to change it to a fork with 45mm offset. A-C is pretty close to what would come on stumpy/rockhopper/hardrocks through at least 1996, but the rake/offset is quite different. Would I notice much of a difference? I am riding about 50/50 road and trails. Feb 13, 2024 · 76 deg Head Angle, 43mm Fork Offset, 58. It's all personal preference, and how much you're trying to have the "rake" of the forks compensate/exaggerate the head angle of the bicycle. 5° HTA. Yeah the 51mm offset forks are considerably worse at low speed than the 44mm on bikes with slack head tubes. Imagine a line passing through the steerer tube of the fork. My question is, what will be the noticeable difference from switching to a lower offset? My current complaint is poor low speed manoeuvrability (switchbacks). The 44mm offset is in keeping with adding stability for more aggressive downhill and tech riding, and will for sure sacrifice some of the low-speed agility of the 51mm offset/130mm travel Fox 34 found on the standard build. Which Fork Offset/Rake I have just ordered a J. Jan 16, 2021 · I was looking at upgrading the fork on my 2021 Specialized chisel (29"HT) and noticed that almost all of the aftermarket fork have a 51mm offset vs the shock that came on my chisel that has a 42mm offset. I'd like to upgrade the fork, but the ones that have the best deals have a larger fork rake--as much as 50 degrees. Woman rammed into me running a red light. So that's pretty much that. While there are some other variables that changed between the bikes, I honestly do feel a difference when it comes to stability. Enjoy! Another reason why negative wheel offset is an extreme safety problem is that the forward offset is responsible for supporting the bike while leaning in turns - it lifts the front end out of the lean, which is a very good thing because it reduces the ability for the bike to self-oversteer into turns - changing wheel offset changes the steering Apr 14, 2012 · Not 43 vs. 5 Degrees, and has a fork with a 50mm rake. With the new fork I’ll also put 32c tires on. 44mm offset will shorten the wheelbase and make the bike handling more nimble, 51mm longer wheelbase and more stable at speed. I picked up a 140mm fox 36 with 44mm offset. I'll never go back to 51mm Jan 4, 2021 · The Trail 429 that comes with the 140mm Fox 36 is part of the "Enduro Spec". I wouldn't personally buy a fork without knowing the rake. Yes, it made the bike feel different in a good way. However it appears you have plenty of hose to accommodate that. I measured her current fork at roughly 419mm for A-C and found online that it has a rake of 50mm. I haven't ridden 27. You have a hydraulic brake which will need to be bled, mostly the hose will need to be cut to get it out of the fork and possibly replace if it ends up being too short. Kind of like when you switch to a shorter stem. Of course, it depends on which direction you're going in. This has a massive affect on the handling and, combined with the different height of this fork, will ruin the handling of the bike Mar 11, 2023 · Rake or fork offset on its own does not influence the steering speed. Rake refers to the curvature of the fork blades, whereas trail is the horizontal distance between the contact point of the tire and the steering axis. The 40 comes in both a 48 and 52 mm and it affects steering so I don't wanna get the wrong one, any help appreciated. Fork getting replaced gives me 62mm trail. If you go to longer fork you will have more trail if offset remains the same. a 43mm fork will give you quite a bit less trail than a 30mm fork. I’m having trouble finding a fork with 46mm offset. 63d and 55mm), and the larger size have steeper HA and shorter fork offset (e. More on trail: Trail is a function of fork offset, wheel size, and head angle (steering axis angle). Moving the wheel axle does indeed affect offset. (if that makes sense?). 5” bikes (for now) but some brands like Transition and Yeti are offering 27. Manitou Markhor 29" is 51mm offset, bike came with 46mm offset fork. I am in the market for a fork upgrade. This seems to be a pretty popular combination, so I just wanted to see if any of you were running this please? I currently have a 45 offset fork on my road bike with 28c tires. The shorter offset is more stable and holds its line better. 5) pike on a new bike. These are ripped off designs down to the last detail of big box forks. Why is it that if you buy a bike with a Rockshok it comes with a 42mm offset, but if you buy the exact same fork separate the only option is Jul 5, 2017 · It’s this reason that 29er forks often come with different offset figures than 27. Current trail is 62mm. 37mm vs 44mm fork offset Question Looking to upgrade from a Rockshox 35 Gold RL on my Trek Remedy and a good deal on a used Lyrik Ultimate has come up, but the offset is 37mm vs 44mm on my current fork. More trail, more stability at speed. Will a 44mm offset help? Are there any other considerations to make when reducing offset? Hi Guys, i am new to mountain biking and got a question about the offset. Fork offset or rake is the dimension shown. I'm stuck trying to pick a fork. Jul 15, 2019 · Fork offset — also known as rake — is the distance between the axle and a straight line through the head head tube. I am looking at Odyssey R25 and Sunday Nightshift forks. Shorter and steeper you'd typically go with the longer offset. That's massive. Bikes designed around the 44mm offset are typically slacker because the shorter offset makes them more stable at speed. Headtube Angle: degrees: Fork Rake (offset) mm: Wheel Size: the material the fork is made of will have a bigger impact to your handling in terms of comfort than 1mm of rake with the same or near identical ATC (axle to crown) length. , but it felt the same as the shorter offset forks. Would it create funky handling to put a 32 or 33mm offset fork on a frame with 75. ffcc hjjhllcl utrx allj wbgft zqhv ijgbk zsnzpxx gam infp