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Questions tagged [fork]

Usually means the front fork, where the front wheel sits. Can also mean the rear fork, a part of the frame.

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13 votes
3 answers
26k views

Replacing suspension with a solid fork

I have an older version of this bike: They have made some changes to the components since I bought my bike but it is more or less the same. Here are the specs on the newer bike. I was hoping to ...
sixtyfootersdude's user avatar
10 votes
4 answers
39k views

Is it possible/sensible to add a suspension fork to an old mountain bike?

I have a ~1993 Giant mountain bike. It's not great, but I am a very new and casual rider. The bike has a solid fork and it makes for the predictable rough trail ride. The trails are generally ...
Andy Davis's user avatar
36 votes
4 answers
259k views

What is the "preload" setting on the front fork suspension?

I've made a photo of the actual "thing" as I find it very difficult to explain otherwise: I'm wondering what this "thing" sets and how it actually works. So, what is "preload" and what happens when I ...
Frantisek's user avatar
  • 1,139
20 votes
2 answers
2k views

Why do modern mountain bike forks no longer use boots on fork stanchions?

Why do modern mountain bike forks no longer use boots on fork stanchions? Older mountain bikes used to have them on the forks, and lefty and headshocks still do. Why have these fallen out of fashion ...
Benzo's user avatar
  • 18.2k
11 votes
2 answers
3k views

How does fork offset affect bike handling?

Some forks come in a variety of different fork offsets for the same model. How does replacing the fork designed for the bike with: A fork with smaller offset, everything else the same A fork with ...
abdnChap's user avatar
  • 3,339
3 votes
4 answers
28k views

Badly rusted suspension fork

I have a $300 MTB used for commuting. It has been three years now, and the rain and snow have said their word. Two weeks ago I disassembled the fork and spent a good one hour with the sandpaper, ...
Vorac's user avatar
  • 13.8k
45 votes
7 answers
184k views

Pros and cons of single-sided forks (Cannondale Lefty)?

Looks like they save some weight, but how do they have a better strength/weight ratio than a traditional two legged fork? With the single-legged fork the fork and axle must resist huge bending all ...
Jerryno's user avatar
  • 2,134
14 votes
3 answers
4k views

What is this spring between the fork and the frame?

Sometimes on a bike I see a short spring, most often covered in rubber, connecting the fork with the frame: What is the purpose of it? The only thing that comes to mind is stabilising the fork so it ...
Emmit's user avatar
  • 735
14 votes
4 answers
8k views

Is it safe to remove "lawyer tabs" on a carbon fork?

Is it safe to file off the "lawyer lips" - the little tabs on the end of the fork dropouts - on my carbon road fork? What about cyclocross forks? I've heard it's "common sense" to remove them...
Sk606's user avatar
  • 1,982
13 votes
1 answer
31k views

What maintenance does a front suspension fork need?

I've just bought a used bike on eBay, its a 2002 Marin Bobcat Trail. It has 'In-Sync 266' suspension forks. This is my first suspension bike so I need some guidance in the use and maintenance of these ...
Tim Long's user avatar
  • 285
13 votes
3 answers
22k views

Why do bikes have carbon forks?

I have noticed many bikes for sale that are made of mostly one material, such as aluminum, except for the fork which is carbon. I know carbon is very expensive so the manufacturer must be trying to ...
SLR's user avatar
  • 383
11 votes
1 answer
2k views

Why is the steering so twitchy? Steel 90's MTB fork

EDIT/UPDATE: I've removed the fork and don't see any sign on impact/damage. Mabye folks on here can spot something that I can't? I think I'll put a new fork on, as I don't see any signs of damage to ...
gamgam's user avatar
  • 119
11 votes
3 answers
60k views

How do I choose a bicycle fork?

I'm putting together a bicycle on a budget from a frame I was given and various parts from a bike with a broken frame. The only part of any expense that I really need is the fork, and I want to get ...
Gazzer's user avatar
  • 251
8 votes
5 answers
17k views

What is the advantage of a reverse arch suspension fork?

There are a couple of suspension fork manufacturers that have adopted a fork design where the lowers have a reversed arch. I can't see that they claim any particular performance advantages for it, ...
z7sg's user avatar
  • 548
5 votes
4 answers
55k views

Why isn't my suspension bouncy?

I recently bought a Carreras centos limited edition mountain bike. I want to find out how to make my suspension bouncier and I want to experience a MUCH more comfortable ride. I have tried fiddling ...
Sam's user avatar
  • 51
4 votes
2 answers
4k views

How to remove slider legs from old rst suspension fork?

I want to clean and lube my old rst suspension fork. So far I've failed to separate the slider legs from the frame to clean/lube the inside of the legs. There is a 4mm hex bolt on the bottom of ...
Joe Heller's user avatar
3 votes
2 answers
5k views

Safe steerer spacers stack height

I'm building my first road bike, which means I'll have to find appropriate bar height through personal experience and cut the fork steerer in process at least once. I plan to start with the following ...
Klaster_1 Нет войне's user avatar
3 votes
2 answers
4k views

Any wheel on any fork / frame?

I have been braking for a bit too long with worn off brake pads on not so new rims so I basically killed them. I currently have the stock wheels of an FX Trek 7.2 bike. I will most probably change ...
ptpdlc's user avatar
  • 1,942
1 vote
2 answers
3k views

What torque for caliper brakes onto carbon-alloy forks?

I've recently got a new bike with a Kinesis DC07 carbon/alloy fork. This comes with deep-drop calliper brakes (Shimano R451 Dual Pivot). The first time out I bumped one of the brakes and it twisted ...
James Bradbury's user avatar
12 votes
4 answers
5k views

How often do you really need to service forks and shocks?

According to manuals, forks and shocks have to be serviced regularly. For example, rockshox forks have 50-hour and 200-hour service kits/instructions. On one hand, I know people who swear by these ...
PejoPhylo's user avatar
  • 397
10 votes
1 answer
9k views

Bike unstable (difficult to ride without hands on bars) after changing fork after collision

After a low speed collision with the front of a car in which a cars bumper met the side of my fork (I was in a track stand-esque stance) my fork was bent slightly so I replaced it with a (inexpensive ...
user74671's user avatar
  • 419
10 votes
3 answers
15k views

Upside-down Fork vs Traditional Fork

What are the advantages of upside-down (USD) forks vs traditional forks? I have read they are 'better', 'stronger', etc., mostly in the context of motorcycles. Some high end downhill bikes use them ...
ebrohman's user avatar
  • 5,518
8 votes
5 answers
6k views

Frozen suspension in the winter

Winter is coming! Last season I put my road bike in the garage and just rode my mountain bike all winter. Something strange happened: my suspension fork froze. When spring came everything unfroze and ...
sixtyfootersdude's user avatar
5 votes
3 answers
18k views

Are modern forks compatible with older style bikes?

I have an old 10-speed bike (likely 80's vintage) with a threaded fork. Can I replace it with a modern threadless fork with the style of stem that slides over the top of the fork and clamps on? I know ...
Mac's user avatar
  • 9,156
5 votes
1 answer
13k views

Upgrade/Replacement options for Cannondale Headshok DD50?

I have an older Cannondale that I love. It's an F600 comp (the special edition one in pumpkin orange), with a DD50 front shock. The problem is that the DD50 is WORN as all heck. Even when locked ...
aepearson's user avatar
5 votes
1 answer
1k views

Shallow ring of death

By not servicing the headset for a long time (>10K km), I ended up with the so-called ring of death on the steerer tube. If you have never heard of it, watch this ...
Alessandro Cosentino's user avatar
4 votes
1 answer
5k views

How to adjust RST fork travel?

Today I own a RST Champ fork with 100mm of travel. After doing some research I found that there are 3 travel options 80mm, 100mm and 120mm. I also find out that the adjustment is done by adding or ...
Euller Campagnollo's user avatar
4 votes
1 answer
137 views

Giant Crest fork NEGATIVE pressure

my child runs a Giant Crest 34 RCL, that is newish (couple months old,) and has been fine for the past few weeks that they have ridden. They run about 60PSI, and testing the rebound makes no ...
Hman66's user avatar
  • 183
3 votes
3 answers
2k views

Changing from rigid to suspension fork

I have a White AX 290 FF 20 that I have converted to an e-bike. I'm also planning to add a suspension fork to it. My budget is approximately 100€/120 dollars. Do you have any recommendations for the ...
MT247's user avatar
  • 136
3 votes
2 answers
26k views

Aluminum forks vs. carbon forks (with aluminum frames) what are the trade offs? [duplicate]

The all-aluminum frame bike will be cheaper. The aluminum fork should be more robust and less prone to breakage. The carbon fork will be more shock absorbing and comfortable. That's kind of how I ...
Sympa's user avatar
  • 237
3 votes
1 answer
286 views

I suspect that my carbon fork has a crack but I can't really tell

I've relocated to a new town so I'm still looking around for good bike shops. For the time being as I was re-assembling my stem, i noticed a small notch of about 0.5mms on the front of my fork (the ...
Greg's user avatar
  • 153
3 votes
3 answers
14k views

How do I identify an SR SunTour fork exact model?

I recently located this SR SunTour service manual, containing schematics of a load of forks. Trouble is, my fork only has "XCR" on a sticker, and production date stamped. At some forum this is ...
Vorac's user avatar
  • 13.8k
3 votes
2 answers
2k views

Frame/fork compatibility

I have a singlespeed/track geometry frame and I am after a fork that matches it. Besides the diameter of the steerer tube (it's 1 1/8"), what should I be looking for in the fork specs to be sure ...
Alessandro Cosentino's user avatar
3 votes
2 answers
5k views

Is it possible to replace a 1 1/8 steering tube with a 1"?

I have a 94 Giant ATX. Threaded 1 inch steeering tube. I need a shorter stem, and would also like to install a suspension fork. Is it doable? Could I take a modern suspension fork, heat the crown, ...
marianov's user avatar
  • 133
2 votes
3 answers
7k views

120 mm fork with a frame designed for 100 mm fork?

I have a Cube Reaction Team 2011. It came with a Fox Alps 32 fork, 100 mm travel (26"). The fork is now ruined and I need a replacement (on a rather tight budget) and I found a good price for a ...
user622505's user avatar
2 votes
1 answer
1k views

Fork leaking oil?

After finishing my last two rides on my second hand bought bike, I've noticed both stanchions appear as if they are leaking oil Could it be just WD residues or excess suspension oil?
PIXP's user avatar
  • 493
2 votes
1 answer
2k views

Should I do anything about this minor nick in a carbon fork?

Unfortunately I managed to smack a metal flashlight with quite sharp edges and a bit of movement force against my carbon fork when I wanted to check something on the bike. Although the damage is ...
conste's user avatar
  • 515
2 votes
1 answer
410 views

Carrera impel im-1 Electric Hybrid Bike ridgid to suspension fork

Hi there I have the Carrera impel im-1 Electric Hybrid Bike this bike has been great so far but as far as living in a town not quite a city there are some bumps and curbs I would like to get over more ...
Danny Ashcroft's user avatar
2 votes
2 answers
704 views

Possible damage in carbon fork of used road bike I'm about to buy

I'm about to buy this used Giant TCR (year?) road bike, but I noticed it has a raised mark on one side of the fork. The bike shop knows nothing about it and it seems structurally fine. May it look ...
aguadopd's user avatar
  • 121
2 votes
1 answer
382 views

Why would semi-solid fork make whizzing sound?

Alert the semi-solid fork is probably not the right terminology, it shows that I don't know 100% whether the work has some sort of inner suspension. My bike is almost this one but I feel there is ...
user avatar
2 votes
2 answers
477 views

Alternating two forks on a single bicycle — do I need two headsets?

I have a full rigid (fat) bicycle and I am playing with an idea to use a suspension fork sometimes. I want to keep the possibility to swap the old fork back when I do not need suspension but want to ...
Grigory Rechistov's user avatar
2 votes
1 answer
3k views

What fork size is 32mm (inside diameter on the frame) considered?

Good day, I'm new to the whole bike building process, but I've finally decided to make the step and build a semi-nice bike. I've bought a really nice aluminium frame 2nd hand, but its sizing has me ...
hilchev's user avatar
  • 143
2 votes
1 answer
3k views

Are full carbon forks less prone to failing from hidden defects than those with alloy steerers?

Are full carbon forks less prone to failing from hidden defects than those with alloy steerers? Even though the mechanics couldn't find problems with Richard Stanton's bike, his fork failed ...
Brian's user avatar
  • 1,043
2 votes
1 answer
2k views

Frame with a tapered headtube - fork compatibility

I've seen a couple of different questions that have touched on this topic but after having read the answers, I'm still not confident. I'm doing my first bike build and so far I'm just trying to put ...
DL3001's user avatar
  • 65
2 votes
3 answers
17k views

What options do I have when replacing my fork's elastomers?

I'm rebuilding an AntiGravity Fork and converting it to threadless for my 'Blast From the Past' bike (GT Bravado frame, U-Brake, Bullseye hubs and cranks, 21 speed). I really like these forks and I'd ...
Ehryk's user avatar
  • 3,963
2 votes
1 answer
314 views

Hole inside fork's upper tube, air-spring side?

I've disassembled my Reba fork (FS-REBA-RL-A6) and found a hole in the inner wall of the top tube, air-spring side leg. Doesn't look perfectly round to me, even though it can be an effect of a bit of ...
nandilugio's user avatar
1 vote
1 answer
3k views

How can I fit a tapered fork to a 1 1/8 semi-integrated/zero stack head tube?

I have a 2004 Giant VT frame with a zero stack / semi-integrated headset. It currently takes a straight steerer threadless fork. Is there any type of headset I can put on so I can fit a tapered fork?...
Nick Miller's user avatar
1 vote
1 answer
178 views

Is my fork suitable for my wheel

I bought this front wheel https://www.probikeshop.fr/roue-avant-mavic-aksium-ust-disc-a-pneus-center-lock-2-aa9/154559.html and this surly fork https://www.bike-components.de/fr/Surly/Fourche-Rigide-...
Smilia's user avatar
  • 243
0 votes
1 answer
2k views

How do I determine my bike's fork width?

I have a Breezer Liberty 2.3. I am trying to determine whether it would work with the CycleOps Hammer trainer. The trainer says it is "Quick-release compatible for bike frames with fork widths of ...
finsprings's user avatar