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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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1 answer
777 views

My preload screw doesnt work

The preload screw on my mtb fork is very loose and easy to turn, I have a spring fork. The preload doesn't change even if I loosen or tighten the screw. Any ideas on what could be wrong?
5 votes
2 answers
8k views

Pre-load of suspension forks on one side only

I have a question about suspension forks that have a pre-load knob only on one side. I believe having it on one side only is not uncommon, and the other side is often equipped with a lock-out knob. ...
0 votes
2 answers
42 views

new rockshox boxxer select rc from 2023 YT Tues core 2 has oil on right stanchion after first DH ride and being stored upside down for a week

As title states I purchased a 2023 YT tues core 2 last autumn. Took it for a couple of easy flat rides just to make sure it was feeling good. Everything seemed fine. Took it to the park last week and ...
6 votes
2 answers
382 views

Material chipping from fork dropout. Still safe?

I have a 10 year old Suntour suspension fork where some of the material on the dropout has started to chip and fall off. I think it has happened because of some harsh winters with lots of road salt. ...
4 votes
1 answer
133 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 ...
3 votes
3 answers
678 views

What is the name of bike fork spacer for shipping a bike frame?

I am trying to pack my bike for an plane ride, and while packing I wanted to know what is the name of the spacer that needs to replace the wheel(s) between the fork dropouts to prevent frame ...
2 votes
2 answers
626 views

Bicycle fork design history

I recently saw a bicycle on display that was labeled as circa 1895 (from the White Crown bicycle company), and the fork blades appear to be made from a single piece of tubing bent into a U-shape (see ...
3 votes
1 answer
66 views

Fork size and suitability

I'm looking to replace the front fork on my 2007 Specialized Roubaix Comp. Here are the Specialized specs: Fork Length (full) = 375mm Offset =47mm Head Tube Length = 140mm Using a standard 700C ...
9 votes
5 answers
6k views

Can I safely drill a hole from the crown into the steerer in my carbon fork?

I want to install dynamo-powered USB charging apparatus inside my fork steerer. However, it's a carbon fork that has no exit at the crown for the dynamo wiring. Is it safe to drill a small hole (at ...
3 votes
1 answer
280 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 ...
1 vote
0 answers
90 views

Specialized Sirrus bicycle, fork cracked [closed]

I have a Specialized that was a gift, but have some problems at the front fork. The fork is cracked, as per Photo: Can someone help me to discover how to repair? Other photos of the bike:
2 votes
2 answers
171 views

Fork V-Brakes won't come out

I can't remove these v brakes out of my fork, any idea how to remove these? Also, i unscrewed the bolts as you can see at the photo but still no go.
0 votes
3 answers
232 views

SR Suntour XCM fork too stiff

My Rockhopper Comp 27.5 came with the SR Suntour XCM fork (coil) and I want to make it less stiff. I have tried to fully adjust it as far as it goes, but it is still super stiff. I don’t want to spend ...
4 votes
2 answers
1k views

How bad is topping out a suspension fork?

I recently got a relatively cheap department store bike to bring to college, since it will see a lot of wear and will be kept in the elements. However, whenever I lift the front wheel (as in to get on ...
1 vote
1 answer
50 views

Promax Headset Adapter 1", 1-1/8

I have a broken Cannondale 2007 Bad Boy Ultra, will the Promax Headset Adapter 1", 1-1/8" give me the opportunity to replace it with a non-shock standard fork.
9 votes
2 answers
8k views

Cannondale Lefty DLR Ti Fork Rebuild/Maintenance

I have a mountain bike with a 2003 Cannondale Lefty DLR Ti fork. As I've been riding the bike this season, I've noticed that the fork is behaving strangely. It doesn't seem to lockout fully and it is ...
2 votes
1 answer
220 views

Industry standard weight limit for suspension forks and carbon fiber forks?

I followed the advice of people on this forum and upgraded to wider tires on my hybrid instead of buying a suspension fork. Thank you everyone that was a big help. I went from 32mm to 47mm on front ...
4 votes
2 answers
1k views

How to remove the lock lever on a 2020 Suntour NEX suspension fork?

The locking on that fork is no longer working in that in locked position, the fork is as unstiff as when not. On other models, I've been able to remove that blue lever and tighten things underneath ...
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 ...
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 ...
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 ...
2 votes
2 answers
4k views

Preload on Haro mountain bike fork not working

I recently got into mountain biking, however, I realized that my front suspension would not dampen or even move when I got on it, only hard movement down would actually move it (but not by much). So I ...
23 votes
6 answers
8k views

Why did curved forks disappear?

Forks on historical bikes are often curved forward in a smooth curve, sometimes called a "French bend". This is sometimes claimed to add a small amount of compliance and comfort. It ...
5 votes
3 answers
2k views

What is a safe weight for front rack + luggage for a steel race bike fork?

I frequently commute with a backpack on my '90s steel race bike, and encounter the usual issues of sweaty back and tired shoulders. The riding position is also not perfect for carrying a backpack on ...
1 vote
2 answers
280 views

Light fork recommendations?

I just built my first bike up, it's a total frankenbike and it's a lot of fun, but I'd like, just for fun, to see how light I can make it as I do mostly use it for practical commuting. The frame is a ...
0 votes
1 answer
103 views

Hybrid bike. ride with front suspension always locked: effects on fork durability

I am considering acquiring a hybrid bike with a front suspension, since it is the closest to what I want that I can find. But I do not want a front suspension, so I would always ride with it locked ...
10 votes
6 answers
3k views

heavy and want to ride again

I bought a street hybrid 2010 Giant Seek 0 a decade ago. It has maybe 30 miles on it. The bike has a 700c 25mm tires and solid Aluxx frame. I want to ride again but I'm 300 lbs. (136 kg) I'm ...
2 votes
1 answer
131 views

Does this poor damping in the forks indicate a fault?

I recently bought an entry level mountain bike, a Cannondale Trail 7, to use as a town bike. My town doesn't have too many mountains, but it does have a lot of badly rutted roads and I wanted ...
1 vote
0 answers
201 views

Canyon Ultimate CF SL 7 2022 steerer tube compression plug stuck?

This is concerning my friend's Ultimate CF SL 7 (105) 2022. Ridden approx 5000 km so far. Everything's been fine, up until a recent ride, but now there was noticeable movement (in the direction of the ...
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 ...
3 votes
2 answers
221 views

Will a New Horizontal Stem Riser Support a Front Child Seat

I recently bought a Lectric XPedition. My goal was for it to transport my 3 kids, 2 in back and the youngest with a front child seat. When I received the ebike, the collapsible handlebars made that ...
15 votes
5 answers
4k views

Are curved aluminum forks safe?

This is an entry-level road bike made by "Upland", a Chinese company. That fork is aluminum. You usually only see steel (and sometimes carbon) forks curved like that. The only reason you would have ...
7 votes
2 answers
714 views

How do you interpret "minimum insertion" of a quill stem?

I have a 1" threaded fork here, longer than usual. The headset nuts have been separated by a significant number of spacers. So many, that if the quill stem is inserted to the minimum, almost none ...
2 votes
2 answers
107 views

I can't figure out the brand of this fork

I recently bought this used fork for a project and I can't figure out what brand it is, I looked for and compared every brand that starts with the letter 'C' but I couldn't find anything with this ...
5 votes
2 answers
4k views

Disc brake adapter too close to rotor

I've just bought a new (Planet X) Holdsworth Stelvio (http://www.planetx.co.uk/i/q/CBHOLSTELTIAG/holdsworth-stelvio-shimano-tiagra-4700-touring-adventure-bike) and am having a problem with the front ...
6 votes
5 answers
958 views

How do I know where to cut the fork tube?

I am building a road bike and I am not sure where to cut the tube of my new fork. Is there a "standard" for how many spacers (or cm)?
9 votes
1 answer
2k views

Is this bike fork misaligned?

Just received the delivery of a new Ken 26" Bayside bike, and the first thing to do was put up the front wheel but it seems like the forks are misaligned (although there is no apparent damage in ...
6 votes
3 answers
3k views

Road Fork: Curved vs Straight?

I found a frame I'm interested in building up, but it doesn't include a fork. So I've been looking for carbon 700cc forks... with disc tabs. I've found a few, but ran into a new dilemma - curved vs ...
0 votes
1 answer
112 views

Can I fit a damper to sr Suntour spring forks?

I bought a GT avalanche 3 second hand with seized forks. When I stripped them down to clean, there is a coil spring in one side only and no damper fitted. Can I buy a sr Suntour damper and fit that to ...
0 votes
1 answer
68 views

Retromod: where to find rigid 26in fork for disc brake?

looking to replace my 90s Marin rigid fork (canti) for on with a caliper mount for disc brake. The closest I found was this but it is hi-ten. Also I am not sure why they drilled a hole at the junction ...
1 vote
3 answers
303 views

Replacement for Suntour M2000 fork, 26" wheel

I have an old Apollo Paradox full suspension MTB dating from around 2011. The existing fork is a Suntour M2000 with a 26 inch wheel. I think the travel is 50mm/2 inch Stock photo: What would be a ...
1 vote
0 answers
39 views

Suntour fork: Air side lower leg screw can't be tightened, rotates too easily

I tried to do a lower leg service on a Suntour Auron 35 fork, for the first time. When re-assembling, I was unable to tighten the air side screw to the 6 Nm that Suntour specifies in this video: ...
1 vote
2 answers
285 views

Purpose of fittings at the bottom of suspension fork?

I have a question about the suspension fork on my mountain bike. There is a hex socket at the bottom of the right fork leg. There is a normal bolt head at the bottom of the left fork leg. Are these ...
1 vote
1 answer
82 views

What oil weight on spring side after Charger upgrade in boxxer R2C2 2011

Ive bought the charger damper upgrade for my boxxer 2011 R2C2. Previously I would use 10ml 15WT oil on the damper side and 40ml 15WT on spring side (Boxxer 2011 R2C2 Service Manual). In the charger ...
1 vote
1 answer
164 views

How to get these lower legs off?

Hi I have a fork from a carrera crossfire 2000, the sticker says mg suntour cr 920. I want to full service and overhaul this fork because the suspension is totally stuck and not working! There are no ...
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 ...
1 vote
1 answer
203 views

Manitou Minute Expert fork oil?

What oil viscosity is needed for a Manitou Minute Expert fork? Some people say it's 5w some say it’s 15wt and what weight is best to use?
12 votes
4 answers
4k views

Should amateurs install their own headsets?

Building a bike from scratch sounded like a fun challenge, but a frame builder firmly told me to get the headset installed professionally. Videos online make it look easy even if you don't have the ...
2 votes
2 answers
1k views

Aluminium fork dropouts hit floor - need to worry?

I had my bike in a bike stand without wheels, clamped by the seat tube. As I loosened the stand mount lock the bike slipped out of my hand and suddenly rotated forwards as most of the weight was in ...
1 vote
1 answer
103 views

Stanchion material or coating on cheaper forks

I bought a secondhand kids bike (2019 Scott Scale disk) with a SR Suntour XCT-JR 24 Disc, 50mm travel, fork. There are some minor rust spots on the upper stanchions and thought about cleaning/...

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