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Unanswered Questions

104 questions with no upvoted or accepted answers
9 votes
1 answer
950 views

Shimano Dura-Ace R9120 lever leaking

My bike's Dura-Ace R9120 rear-brake/front derailleur shifter (left shifter in UK) leaks brake fluid when I pull hard on the lever. It leaks from this specific place: I understand this lever is ...
6 votes
0 answers
483 views

Shimano road bike lever leaking mineral oil

I have a leak in my Shimano DA 9170 (right) shifter. When I do a bleed, everything seems to work for a ride or two and then I start to lose braking power and the underside of the brake hood is wet ...
3 votes
0 answers
148 views

Help identifying brand of road bike frame

Last year I bought this second-hand bike, but I was a total newbie and didn't realize that the branding was just stickers until I received it. It's still a good bike and I'm having fun with it, but I'...
3 votes
0 answers
115 views

What could the source of this ticking sound be?

I have an annoying ticking sound that I need some help with. I've read through a lot of suggestions online and two bike shops have failed to solve it. The bike is a brand new custom build (Trek Emonda ...
3 votes
0 answers
86 views

Just hoping someone out there recognizes this bike and can help identify it

Assuming this is a 90s era aluminum frame with only a head badge sticker to identify it, no name or model printed anywhere. RX100 RD, DeoreXT FD, Sugino triple crank and Exage500EX brakes. the fork is ...
3 votes
0 answers
116 views

I need help identifying this womens bike frame, please

It's nearly 70 years old. I've narrowed the potentials down to Sears, Schwinn or possibly J.C. Higgins. I did just order the wheels for this and it takes 26" schwinn apparently as opposed to ...
3 votes
0 answers
96 views

Can't find a "friction screw" for a friction shifting system

I recently broke one of the two speed levers ajuster (friction screw) that adjust the pressure between the levers and the cable. It's made in plastic as shown in the picture below. I would like to ...
3 votes
0 answers
187 views

Help identifying this $25 ebike

I picked up this folding bike for $25 thinking I would google it and have all the info I needed to get it functioning. Any help finding documentation would be great, what kind of battery can I plug ...
3 votes
0 answers
519 views

Help identify this loop frame bike

I'm trying to find out more information about this old loop frame bike I'm planning to refurbish. I haven't found any other marks that may be identifying, if there's anything else I can take a photo ...
3 votes
0 answers
8k views

Shimano STX rear shifter, broken spring

I have to repair a Shimano STX shifter 7 speed (from a Raleigh MT200 bike from 1995). It has a broken spring, and I am almost sure that is the only thing to be repaired. It is similar to that ...
2 votes
1 answer
26 views

Replacing brake lever on Shimano Nexus integrated shifter/brake lever

I have a Shimano Nexus Revoshift shifter with brake lever, part number SB-C6000-8, to use with a Nexus 8 internally geared hub. The brake lever has been sheared off where it joins the body of the ...
2 votes
0 answers
65 views

Warped MTB Tyres

I recently bought a used Canyon Spectral, which came with Maxxis minion and highroller 27.5 x 2.3 TR tyres. Both tyres appear to be warped. The rims are fine and I’ve tried installing with several ...
2 votes
0 answers
40 views

Surface scratch on carbon steerer

Following my previous post, I managed to find an identical new fork replacement from a reseller since the communication with the company was absolutely terrible... When I unpacked the fork though, I ...
2 votes
0 answers
72 views

Rear hub is sticky and clacking when backpadeling

I'm having trouble with my Nexus 8 Hub. It started to feel strange recently after a tour. I got help by someone in a free bicycle garage. We opened up the hub, gave it an oil bath and greased all the ...
2 votes
0 answers
76 views

Identify this Bianchi - possibly 80s

Can someone please help me identify this Bianchi model? My uncle has had it in storage for since years – I believe it's from the 80's. Here are some photos, to help identify the model. Cheers, Alex

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