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Unanswered Questions

67 questions with no upvoted or accepted answers
7 votes
1 answer
1k views

Alternative to 5-speed twist shifter for Shimano Nexus 5-speed IGH?

I'm going to buy a SG-C7000-5D / SG-C7050-5D and don't want to use the twist shifter. Unfortunately there aren't many 5-speed flat bar shifters around theses days. I've searched for alfine shifters, ...
6 votes
0 answers
110 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 ...
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
797 views

Jammed pawl on 8-speed shimano shifter

I'm doing up a bike that seems to have been sitting in a shed for the last 25 years. It has a Shimano 105SC groupset (93-99) with 8-speed st-1055 STI shifters. As seems to be the norm for these ...
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
0 answers
48 views

Why have my rim brakes started making a scraping noise?

I bought a bike about 7 months ago, and I've noticed over the last few weeks that it's started making an unpleasant scraping noise when I brake. Does anyone know what might be causing this and how to ...
2 votes
1 answer
159 views

pedals only move bike at highest gear

Recently my bike will only move if I’m in the highest gear. I can pedal at lower gears but it will not move my bike forward at any reasonable speed and when I get up to even a very low speed the ...
2 votes
1 answer
74 views

Sram/Avid brake hose compatiblity

I have Sram Rival AXS which I want to transfer from one bike to another. Unfortunately the new bike is bigger (M -> XL) so new brake hose is required. SRAM recommends SRAM Brake Hose Kit - Double ...
2 votes
0 answers
96 views

Cable housing end cap for BR-M375

I replaced the no name brake calipers on an entry-level ebike for Shimano BR-M375. The cable housing for the rear caliper was a bit too long, so I cut off a few centimeters. Then, I put a new 5 mm end ...
2 votes
0 answers
2k views

Shimano gears not shifting (rear derailleur not moving)

My gears were slipping on a ride out, then they stopped shifting altogether. It’s on the lowest speed and won’t go up. I had the issue a couple of months ago, and the mechanic said something about a ...
2 votes
0 answers
284 views

after multiple brake bleed, lever's max stiffness is still close to bar

so after a few bleeds i've done on these Shimano saints, because of new levers replacement, i've found that the rear brake lever, although on max stiffness, goes way further to the bar then the other ...
2 votes
0 answers
235 views

Left shifter is not catching/gets stuck when there is cable tension

I need help with my left shifter. When I have the cable attached to the derailleur and have even the slightest tension applied, the shifter won't shift to the largest cog (I have double front ...
2 votes
0 answers
178 views

SRAM Hydraulic brake stuck (with a changed bite point) after landing/impact

I experienced a weird problem on my SRAM level t 2 piston brakes. I like hopping my bike around, e.g. bunny hopping onto curbs. Sometimes, if the impact is hard, the brake lever would have reduced ...
2 votes
0 answers
906 views

Normal MTB trigger shifters and hydraulic brake levers on a bullhorn handlebar

Was wondering if mounting Altus shifters and hydraulic brake levers on the vertical sides of a bullhorn handlebar would work or would be possible? I tried holding one of my grips on my flat bar while ...
2 votes
0 answers
2k views

Is my right DI2 shifter bad? It will shift "up" but not "down"

The left shifter and front derailleur work fine. The right shifter works fine if I shift to a smaller gear; the bike does not respond if I shift to a bigger gear. I plugged into my PC and from there ...

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