All Questions

1
vote
1answer
56 views

Can I replace a 3x8 1999 Sora crankset with a Claris FC-2403?

I expect I would need a compatible bottom bracket too, like the one that this Claris crankset is frequently bought together with, here. The front derailleur is already a Claris, a few months old. ...
3
votes
1answer
111 views

Vintage bike - help with chainring replacement

I recently broke the large chainring on my vintage bike, and need to replace it, but am having trouble determining what size I need. I lost the chainring on the ride home, so am measuring the bolt ...
2
votes
3answers
101 views

How to remove hex crank bolt

I have been looking online for tutorials on replacing a chainring (or three) for my Scott mountain bike: https://www.thebikelist.co.uk/scott/aspect-40-2012 When trying to take off the chainset so ...
1
vote
1answer
55 views

Disc brake pistons won't stay in

I'm trying to replace my brake pads but when I try to push one piston in, the other one will come out and when I push it back in the previous one will do the same... how do I fix this so that both ...
3
votes
3answers
53 views

TRP quadiem brakes - lever not in place

Today I got my new YT Tues bike and I've noticed that front brake lever came off the piston and I have no idea how to get it in place if it is even possible? Is it defective or can I fix it? Rear ...
1
vote
1answer
36 views

Chainwheel compatibility with Shimano Alfine (single ring)

The chainring on my Shimano Alfine 39T crankset (FC-S501) is severely worn and needs to be replaced. Can I replace it with any chain ring that has the same BCD, bolt count and teeth? I am looking in ...
0
votes
2answers
117 views

Why do my tubes fail with a small area of rubber missing?

My last three punctures weren't punctures at all (ie not a flint or thorn) but each time i looked at the tube it was like a small area of rubber had been rubbed away or just fell off. These are ...
-5
votes
0answers
79 views

What kind of bike do I own [duplicate]

What kind of bicycle do I have. I can't figure it out
0
votes
0answers
49 views

Garmin Edge 520, strange conflict

I am getting at the same time these two opposite results: 1. WARNIG: Heart rate too high. Maximum heart rate 148 2. INDICATION: Heart rate 134. Of course 134 is lower. Why does it happen?
2
votes
1answer
100 views

When I stop pedaling my bike the rear gears keep turning, is this an easy fix? Bike is a vintage Raleigh Grand Prix

Raleigh Grand Prix chain and rear hub keep turning when coasting
2
votes
3answers
119 views

Can I use a spoke tension meter to fix my uneven pre-tensioning prior to truing?

I've managed to lace up the wheel I’m building, however I think I've managed to unevenly tension the non drive side as a few spokes aren't as tight as others. If I get a tension meter, I can go ...
1
vote
3answers
73 views

How can I replace my front cog… or fix slipping off on folding bike?

I have a Faulkner folding bike and I notice often the 6th gear, high gear falls off switching to high gear. Someone mentioned that the cog might be a bad choice for the front of folding bike and may ...
1
vote
2answers
117 views

Does fitting mudguards / fenders improve aerodynamics?

Since the tops of the wheels are moving at twice the speed of the bike, you would think that covering them up would make quite a bit of difference to the drag coefficient, particularly the front wheel....
1
vote
1answer
65 views

Using a Tiagra/105 front derailleur with R3000 shifters

The Sora 2x derailleur mech that came with my gravel bike broke in half. Is the 2x Tiagra/105 front derailleur compatible with the R3000 shifters? Thanks!
6
votes
1answer
96 views

How to deal with fog, condensing on the outside of glasses?

I had a particularly foggy commute both ways today. I was having to wipe the glasses lenses every 10-20 seconds as traffic permitted to maintain some semblance of visibility. I already wear a cap ...
0
votes
0answers
20 views

27.5 x 2.25 tyres replacing a 27.5 x 2.10 tyres [duplicate]

Can I fit a 27.5 x 2.25 tyre on my stock rim that has a stock tyre of 27.5 x 2.10?
-4
votes
0answers
34 views

GT Serial Number YC99L03435 [duplicate]

Can someone possibly help me out with my serial number. YC99L03435 I just bought this GT Interceptor and I can not find any info the the serial or the bike.
11
votes
1answer
634 views

How to attach cable mounting points to a bicycle frame?

I have a frame-building project that is near completion: An old 90ies steel MTB frame was cut, and converted into a frame for a cargo bike. In my enthusiasm, I have overlooked one detail: The ...
3
votes
1answer
96 views

What's the max weight a Btwin riverside 50 can hold?

I've recently bought a Btwin Riverside 50 for daily commute. I weigh 94kg and usually ride with a backpack which weights around 3-5kg, I'm worried if the bike can hold my weight or the pedal might ...
7
votes
3answers
178 views

How long is chamois cream meant to be effective?

In the context of long rides*, how often is chamois cream meant to stay useful (whether measured in hours,km or whatever)? I typically don't carry it on the road, but wonder if a top-up might make ...
3
votes
3answers
162 views

How do I remove this style of bottom bracket?

I am attempting to remove and replace the bottom bracket from a cheapish 1970s American department store road bike. I've gotten the lockring off, and now the non-drive side looks like this: I ...
1
vote
1answer
51 views

Front Derailleur Chainring Size Tolerance

I'm rebuilding an old bike and have an existing crankset with 52-42-30 chainrings. I'm looking for a front derailleur. Most of the triple front derailleurs I've come across say they don't support a 50 ...
1
vote
3answers
108 views

Trimming Shimano FD-R3000 front derailleur

My front derailleur is a Shimano FD-R3000. I have been trying to adjust it following the ParkTool video at Basically it seems to be working OK now: the chain is not ...
2
votes
3answers
96 views

Bottom bracket sizing

I have a square taper BB which has started squeaking. When I took it out to see what size I have, when I was putting it back in I noticed that when I tighten it to a level which to me felt reasonable,...
2
votes
1answer
48 views

Smart trainer & CX bike compatibility

I have a Kona Jake the Snake Frame (2001) and is currently mounted with Continental Gatorskin 700x32c tires and Shimano RS010 622x15c rims. I was hoping to use this on a smart trainer. This setup will ...
4
votes
10answers
1k views

Can I install a back bike rack without attachment to the rear part of the frame?

Can I install a back bike rack without attachment to the rear part of the frame? Also, if someone can clarify, whenever I google bike rack I get hits on racks designed to carry bikes on a car ...
2
votes
1answer
122 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 ...
2
votes
3answers
122 views

Is it possible to fit full coverage fenders on a road bicycle with V-brakes?

I would like to get a used road bike on a budget. However, I need to ideally fit full coverage fenders due to frequent rain. Do I simply need to save up for a bicycle with disc brakes, or should I ...
3
votes
3answers
340 views

Replacement stem cap and bolt

Our oldest son has been alternating between mine and my wife’s bike (Carreras from Halfords) whenever he has to go anywhere, but over the last week or so we noticed he had stopped using my bike, ...
15
votes
7answers
3k views

How to patch glass cuts in a bicycle tire?

How do you deal with the small cuts in a bicycle tires main tread? Do folks fill these small cuts? I have continental gatorskins which I periodically check and pull out the street glass shards. ...
8
votes
2answers
120 views

Is there a standard disc brake mount to disc brake rotor distance?

I'm new to disc brakes and trying to figure out what I need to buy to buy them for a wide fork (135 mm dropout spacing) with IS disc brake mounts and an electric front wheel. I've researched, but I ...
0
votes
1answer
89 views

Cassette, chainring, chain compatibility

I've taken on trying to nurse my husband's bike back to life. It is a 2012 Specialize Venge with Dura-Ace Di2 (very old version); Specialized pro FACT carbon chain rings, Ultegra 10-speed cassette. ...
2
votes
1answer
136 views

Which spokes go on the non drive side and which go drive side?

I just wanted to make sure I understood the guy at the shop. The spoke calculator gives you left side and right side spokes lengths Left side go on the non drive side i.e. the side where the rotor ...
3
votes
2answers
101 views

Worn out square taper bottom bracket spindle?

I got an used bike with a worn out left crank arm. I tried replacing with a new square taper crank arm and torqued it to 40nm; however, it started creaking soon after and the bolt had become loose (I ...
1
vote
0answers
53 views

Standard vs wide shimano shoes

Would my normal sized feet still fit snug on a wide shimano shoes? I’m looking to buy the RP3 but only the “wide” is available. I’m buying online so i can’t personally try it on. Appreciate all the ...
1
vote
1answer
68 views

Bearing failure and wheel offset on Chicco Red Bullet

Our 4yo is not yet fully comfortable on her next bike, so she's been riding her Chicco Red Bullet to school - until the bearing packed up on her back wheel today (has she been doing stunts or what?). ...
5
votes
3answers
1k views

Fixie: how to learn to ride: step by step

I've been riding a single speed to work on a daily basis for about 3 years. I want to learn to ride a fixie. I have a flip-flop, so my fixie ratio is 48/19. I've installed straps (hold fast). My ...
2
votes
3answers
85 views

Locknut on threaded headset doesn't tighten

It's a second hand bicycle that I've owned for a short time, but the problems seem to have started after a crash. The headset started to rattle, and I didn't have a tool to tighten it, so I would just ...
2
votes
3answers
185 views

Bottle holder for mountain bike

I want to get a bottle holder for my bike. It has no pre-drilled holes for the holder. I found some that clamp on but not sure if they would work with the wide tube that I would need to mount it to.
2
votes
2answers
127 views

New build, front derailleur won't shift to outer cog

I'm building a new bike using a Deore T6000 front derailleur with Microshift BS-M10 bar end shifters. I'm having trouble getting the derailleur to shift the whole necessary range and am looking for ...
-2
votes
1answer
78 views

What make model and year is this vintage Trek?

Serial number x 417024 . I'm trying to identify what year, make and model this Trek. Owner says it's an Emonda ALR 1997. However from what I can see Emondas weren't made till 2015. I think it's an ...
2
votes
1answer
64 views

Discrepancy between old chain length and largest chainring largest cog method

Putting on a new chain. First counted the links on the old chain - which I never had reason to think was the wrong length. But since I felt like being thorough I also measured using the largest cog ...
-1
votes
2answers
77 views

Wheel, tube and tires

My wheel shows ETRO 622 * 19. The tire on it is 700*38c. I want to change tire and tube such that the bike becomes capable for 50% road bike and 50% off road. What size of tires and tube should i ...
5
votes
1answer
120 views

Can I repair this valve stem hole?

Today I got a stick wedged between my frame and tubeless valve stem. In addition to snapping the stem I widened the hole a bit. Any suggestions on how to fix it? Current plan is to go over the whole ...
-1
votes
1answer
120 views

Does any know what type of bike this is?

Does anyone know what kind of bike this is?
0
votes
2answers
53 views

Would longer axle to crown be ok?

I have a Trek 820 2014 26 inch for which I had the lbs convert to rigid fork. The original suspension fork was a suntour m3030 which the manufacturer states has a 63mm travel for my bike size. I lost ...
6
votes
4answers
385 views

Buying a bike that has been idle in a garage for years?

A close friend who can no longer ride (illness) asked me if I wanted to buy his 2009 Trek Fuel EX 9. This bike has been hanging in his garage for 9 years and was only ridden for a couple of hours ...
1
vote
0answers
28 views

What is the thread size/measurement of the derailleur barrel adjuster?

The barrel adjuster threads on my commuter bike's RD have been marred when the barrel adjuster got bludgeoned on a side crash and I want to chase the threads before screwing in the replacement barrel ...
0
votes
1answer
51 views

Replaced axle and now clunking in back

I finally got a rear axle replaced, and all new cones on a new axle... I assembled it back together with 7 or 8 of the bearings in on each side and some grease, put it all back together, put the ...
3
votes
0answers
29 views

SRAM i3 coaster brake only activating after multiple turns backwards

My son's bike has a SRAM i3 internal gear + coaster brake hub. It has recently started sometimes only activating the coaster brake after backpedalling a good one or two full revolutions. When in this ...

15 30 50 per page