Unanswered Questions
791 questions with no upvoted or accepted answers
6
votes
0
answers
226
views
What is forward drag on a coaster brake
I have a single-gear coaster brake bicycle that needed fixing. I would have to pedal real hard to get it to go and backpedal a block in advance for bike to stop. Very spongy brakes. Well I took brake ...
- 14.1k
6
votes
0
answers
671
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
239
views
Swain Power-HR relation
I am trying to understand how to use Swain HR to Power equation in my case. Here is a calculator where one can vary the inputs and see the various outputs based based on the equation: http://www....
- 337
6
votes
0
answers
1k
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. ...
CommunityBot
- 1
5
votes
0
answers
506
views
No LED on Junction Box on 2018 di2 8050 - But fully functioning
My 2018 di2 8050 is fully functioning as it should. Battery all good holding charge and i can charge battery ok using SM-BCR2.
Just no lights on junction box when i hold any gear change lever for 5 ...
CommunityBot
- 1
5
votes
0
answers
221
views
Can't find derailleur hanger for an old Nakamura
I tried local parts shops and tried the internet and still can't find the right hanger, And I no longer have the old broken one.
I can't even find the bike on the internet, The only photo I found was ...
- 51
5
votes
0
answers
130
views
keep going off-axis on big jumps i don't know how to stop it?
I've been riding for about 5-6 years, and can speed through tech, can do hips, speed-jumps 5-8 meters... but every time theres a jump with a steep lip, or involves me going quite high, i keep coming ...
- 315
5
votes
0
answers
3k
views
SRAM XD cassette will not fit on the splines of an XDR driver
I have an 11 speed 10-42 XD cassette that I am trying to fit on an XDR driver (this one - https://www.alltricks.com/F-41493-pieces-roues/P-676097-fulcrum_body_sram_xdr). No matter how I turn the ...
4
votes
0
answers
65
views
Shimano Di2 shifter problem - Shifter Battery Discharging Abnormally Quickly
My problem is that the RH shifter stops working, I check the shifter batteries by depressing both levers and it showing red or nothing. However, when I check the batteries with a battery tester, they ...
- 6,870
4
votes
0
answers
131
views
what connector does my battery have
I have 2 ebike batteries that I would like to reuse. They both have this 6pin connector that I cannot find the type of. Can anyone help me out?
- 149
4
votes
0
answers
129
views
Shutter Precision PD-8 dynamo hub cogging after removing wheel for cleaning
I removed my dynamo wheel to remove and clean my rotor and brake pads. I forgot to unplug the wiring from the connector before removing the wheel from the fork, but I didn't even realize that until I ...
- 41
4
votes
0
answers
2k
views
Sram AXS derailleur does not shift
Have you encountered a problem where a rear AXS derailleur stops shifting? Any suggestions?
I bought a mint 2023 GX AXS derailleur on Marketplace, it worked for the first short test ride on a road but ...
- 141
4
votes
0
answers
380
views
Shimano Roller Brake Model BR-IM31 (specifically!!)
New to the world of roller brakes (new cargo bike) and need to change back inner tube due to flat.
I'm trying to work out how to remove the back wheel and have unclipped the gear cable (nexus hub) but ...
- 41
4
votes
0
answers
679
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
586
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.
- 1,413