Unanswered Questions
107 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 ...
CommunityBot
- 1
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 ...
CommunityBot
- 1
6
votes
0
answers
997
views
Help identifying MTB frame
Apologies making ANOTHER one of these threads...Anyhows:
Bought a bike third hand, frame has been stripped and painted. Trying to find make & model so I can get some offset bushings for the shock. ...
- 46
4
votes
0
answers
573
views
Mavic Cosmic SLS - carbon separation
Some aero’ wheels are an aluminium rim with a carbon fibre shroud. On a Mavic Cosmic SLS rear wheel, I’ve found that the carbon fibre shroud is separating from the aluminium rim. Just visible in the ...
- 1
4
votes
0
answers
523
views
What bike frame has these lugs?
Can someone help me identify my bike frame? It has this V-shaped cutout in the top tube lug and a serial number of 2948. It has SunTour dropouts, likely NJS.
- 1,302
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'...
- 131
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 ...
- 6,437
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 ...
- 31
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 ...
- 128k
3
votes
0
answers
106
views
Need help understanding the components of a carbon fiber seat tube to properly unseize it
I recently picked up my first carbon fiber bike which has a carbon fiber seat post that seized to the frame due to rust. I did not initially think that was possible but after looking at it, I believe ...
- 181
3
votes
0
answers
151
views
Bike Frame Identification
Does anyone have any leads on what make/model/year of frame this is? I spotted this bike last summer and it's been nagging at me ever since. I love the design and am trying to track down who is ...
- 12.9k
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
599
views
Help identifying a Bianchi track frame
I've been trying to identify this Bianchi track frame - any help would be appreciated! Closest I've come is Eco Pista from early 80s, but I'm absolutely no expert on the matter.
The numbers on the BB ...
- 31
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 ...
- 153
2
votes
0
answers
64
views
Lubricate between spoke nipples and carbon rim?
When building wheels, nipples should be lubricated so they can still turn easily under tension, towards the end of the build.
When building a wheel using carbon rims, do you also lubricate the contact ...
- 128k