Unanswered Questions
63 questions with no upvoted or accepted answers
6
votes
0
answers
109
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 ...
- 13.9k
4
votes
1
answer
123
views
Samox crankset okay for touring bike?
I just bought a new Salsa Marrakesh. My main use is moderate distance touring (1000 km to 7000 km tours) although it might end up going further.
The Salsa web-page says that the bike has an Alivio FC-...
- 20.1k
2
votes
0
answers
46
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 ...
- 121
2
votes
0
answers
34
views
Square taper with 15.5mm end?
I got a Star Trac NXT for £15 for some indoor fitness but it's missing its left crank arm. I thought to myself oh I'll just throw on a standard steel crank arm and I'll be good to go BUT it doesn't ...
- 5,202
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 ...
CommunityBot
- 1
2
votes
0
answers
50
views
Something like chainsuck on RD lower pulley after new crankset install?
I just switched out a Shimano M5100 crankset for a SRAM GX Eagle crankset. I am using a KMC X11-EL chain. I cleaned the chain before installing it with the new crankset. My RD is a Shimano SLX 11-...
- 2,090
2
votes
0
answers
95
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 ...
- 4,159
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 ...
- 185
2
votes
0
answers
177
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 ...
- 121
2
votes
0
answers
161
views
What kind of frame and brakes are these?
I just bought a bike and I can't figure out what kind of frame and brakes it has.
I found that the derailleurs were made by DNB Japan somewhere around 1960 and that the handlebar is french (Guidonn ...
- 128k
2
votes
0
answers
3k
views
Shimano Nexus 3 coaster brake screeching sound
When I brake hard/er with my Shimano Nexus 3 coaster brake it makes a loud screeching sound. Like really loud, everybody on the street would hear it and turn around. Since I know it's all internal all ...
- 352
2
votes
0
answers
706
views
Internal Roller Brake Problem
I have Shimano Inter M Roller Brakes on my bike. I felt the rear brakes were a bit light after riding 800 or so KM (total mileage on my bike so far) so I thought maybe theres a bit of cable stretch ...
- 115
2
votes
1
answer
63
views
Square-taper crank wobble/movement in only one spot
For square-taper aluminum cranks:
When my drive-side crank is in the 12:00/highest position and the non-drive side in the 6:00/lowest position, there is slight play between both cranks (it rotates ...
- 15
2
votes
1
answer
174
views
Front Mountain Bike Cable Disk Brake Is Too Snappy on First Pull
When I grab my front disk brake for the first time on a ride after my bike has sat for a while it will buck me forward. Once it bucks me it works great. I have tried cleaning it with disc brake ...
1
vote
1
answer
520
views
Running DUB wide crank with 52mm chainline
I have a set of sram xx1 carbon cranks that are DUB wide. My bike (2023 Specialized Epic Evo) is DUB crank 52mm chainline. If I add BB spacers to the DUB wide crank and use a 6mm offset chainring ...
CommunityBot
- 1
1
vote
0
answers
71
views
Play in Quarq power meter on a Trek emonda
I am currently installing a Quarq d four power meter on my ‘22 Trek emonda and have been having some issues. I purchased the sram dub t47 85.5 wide bottom bracket to work with the new crankset. The bb ...
- 11
1
vote
0
answers
91
views
Silver greasy coating on disk brakes
Today I came in to the bike mechanic to align my disk brake calipers and they came out with the disk brakes covered in a silver lubricant (they said that this was especially for disk brakes)
They ...
- 11
1
vote
0
answers
178
views
Fixie bike crank/pedals give in when back pedalling
Recently was given a fixie, but with braking issues.
Whenever I back pedal (as in lock up and stop pedalling completely), the crank/pedal seems to give in and not stop the rear wheel from moving ...
- 1
1
vote
0
answers
467
views
Magura mt5- non stop micro bubbles coming out while bleeding
I have a problem bleeding my Magura MT5 brakes.
I used two 50-ml syringes and the EZ MTB bleed kit. I pushed fluid from the syringe attached to the caliper to the top (at the lever) and back again.
I ...
- 11
1
vote
0
answers
108
views
when bike kept inside, brake/ lever goes extremely stiff
so, I've been through a lot of fiddling with my brake levers, giving them a small clean out and bleed, but I've noticed now that when i keep my bike inside (on heated floor) the brake levers go stiff, ...
- 185
1
vote
0
answers
117
views
Disk brake issues
I’m new to disc brakes and noticed my braking power decreasing. Took the pads off and they look like this. Do these lines indicate anything? What is a used disc brake pad supposed to look like? What’s ...
- 11
1
vote
0
answers
133
views
Campy cranks and pedals compatibility
I have a campy Super Record crank set from around the 1970’s stamped with 9/16x20F and campy pedals stamped with 9/16x20, but am met with lots of resistance when I try to install them.
The cranks came ...
- 131
1
vote
0
answers
80
views
Tektro rear brake does not stay closed
Two weeks ago I had an issue about my brakes QR not working and asked about on this site Road rim bike brakes don't open when using the release
I got some help - and I am very thankful for that - ...
1
vote
0
answers
82
views
Are Magura HS33e levers compatible with HS22 brakes?
I plan to convert a bike with Magura HS22 hydraulic brakes to electric. Thus I would like to replace the brake lever by one having the controller output to stop the motor while braking.
From my ...
- 128k
1
vote
0
answers
111
views
Which crankset standard will fit in my bottom bracket?
I have a bike with a press fit bottom bracket. Unfortunately, my existing crankset has too long of a spindle, and will not fit.
Measurements of note:
bottom bracket shell width: 62 mm.
outside ...
- 7,846
1
vote
0
answers
266
views
Changing a crankset on a Specialized sirrus step through
I have an issue with pedals to crankset connection on a 1 month old Specialized Sirrus Step Through. Probably connection was done wrongly and they are just falling out of the connection holes. Looks ...
- 11
1
vote
0
answers
84
views
Differences and effects of brake lever offset
I've seen some flat bar brake levers where the the pivoting plane of the lever blade is offset and not in line with the center of the handlebar's cross section.
What's the purpose for such design? ...
- 1,305
1
vote
0
answers
197
views
Square taper bottom bracket noise from street riding fixed gear
I’ve been trying to eliminate crank/bb noise in several different Sugino RD2 cranksets over the years with no luck. Always a faint click, once per revolution on the crankarms.
I’ve tightened ...
1
vote
0
answers
115
views
Brake on a pre-drilled track fork
I want to put a front brake on a Cinelli Parallax (track/fixed gear bike). It’s got a predrilled fork, but still a cap on it (as far as I know the cap is made of some kind of wax). What’s the cleanest ...
- 1,945
1
vote
0
answers
158
views
Bike makes noise while 2 out of 3 gears
I assembled a new bike. It rides smooth in first gear but makes a particular noise in 2nd and 3rd gear. It doesn't seem to be from the wheel because it's not there if I turn the wheels in air, but it ...
- 12.9k
1
vote
0
answers
138
views
Hydraulic disc brakes operating by themselves
When cycling up steep inclines on my mtb sometimes the rear disc brake comes on without me being anywhere near the brake lever. I can tell it's doing it as it's gradual and pedalling becomes difficult....
- 17k
1
vote
0
answers
372
views
Hayes Sole Disk Brakes, adjusters stiff/seized?
Second hand bike, my first time encountering Hayes Sole brake calipers. My brakes front and back have gone a bit weak so I wanted to tighten them up a bit. Each side of caliper has an allen key ...
- 215
1
vote
0
answers
223
views
Can I combine two pm break mount adapter?
I think about upgrade my shimano rear brake disc from 180 to 203 mm. The mount system is a pm 160 direct, meaning I currently already have a pm 180mm adapter.
Weirdly, I couldn't find an adapter for ...
- 395
1
vote
0
answers
227
views
Schwinn sidewinder 21 gear slipping?
If rear tire is off the ground, the wheel will spin when pedaled.
When wheel is on the ground the pedals will move the chain in any gear but will not move the rear wheel. The chain is not losing ...
- 128k
1
vote
0
answers
89
views
How much clearance do I need for cross levers?
I'd like to put cross (interrupter) brake levers on my drop-bar tourer, but I also like to use a bar bag. There is about 55 mm of space between my bars and the bar bag, measured horizontally. Will ...
- 499
1
vote
0
answers
525
views
Compatible crankset for my singlespeed
i am planning to replace my current crankset and BB with this:
http://www.jensonusa.com/Cranksets/Race-Face-Ride-1X-Crankset?cs=Blue
Would like to know if this compatible with my bike. Currently ...
- 5,698
1
vote
0
answers
2k
views
Is Shimano 36/24 double crankset possible?
I'd want to exchange my triple crankset with double. After playing with gear calculator and testing some double setups, I came to the conclusion I need 36/24 gearing. I have 10 speed drive, so I'm ...
- 21
1
vote
0
answers
225
views
Sudden, loud creak from BB area
I was on my way to a meeting, pedaling along, when suddenly there was a loud creak. I stopped, visually inspected the bike, manually revolved cranks both ways, and made sure nothing was sticking into ...
- 281
1
vote
0
answers
1k
views
Stages FSA BB30 Power Meter on Cannondale SI BB30A Crankset
I have a Cannondale CAAD12. It has a Cannondale SI crankset. The frame's bottom bracket is BB30A.
My question is, can I fit a Stages FSA BB30 Power Meter on the non drive side?
My concerns:
BB30A ...
- 111
0
votes
0
answers
19
views
Will Sram Dub Pressfit BB92 fit a Sram Apex Crankset?
I would love your help. Will this Sram Dub Pressfit BB92:
Fit the Sram Apex Crankset:
- 471
0
votes
0
answers
97
views
How do you put a usable brake on a bike trailer?
How are you able to brake when on a bike trailer? I am making a bike trailer and need some tips on how to make it.
- 128k
0
votes
0
answers
45
views
Weird noise when pedalling
I noticed a weird noise when pedalling. I had my road bike with me when traveling (airplane), and I just came back from a trip. I only had to take the wheels off when packing it. Once I assembled the ...
- 121
0
votes
1
answer
380
views
Tektro HD-M275 rear brake making grinding noises while braking
I got Tektro HD-M275 hydraulic disc brakes with 180mm rotors, front brake is working perfectly with no issues. Under light braking rear brake works normally without any noises or vibrations, but as ...
CommunityBot
- 1
0
votes
1
answer
563
views
SRAM force axs brake judder/shake/vibrate
I have problem with my SRAM force axs brakes, I bought new disc brake rotors and as well brake pads, cleaned it all changed it, but yet when I brake it just totally judders or vibrates it just doesn’t ...
CommunityBot
- 1
0
votes
0
answers
58
views
What is the correct BB spindle length for Kooka cranks?
Does anyone know the correct square taper bottom bracket spindle length for an early 90s Kooka triple mountain bike crankset?
- 1,895
0
votes
0
answers
250
views
Type of brakes that will work with beach cruiser with no brake hole in wheel
My daughter has a 24" beach cruiser and doesn't like pedalling backwards to stop. She really wants hand brakes. There is a hole in the frame above the tire (where a rear light might be installed) ...
0
votes
0
answers
67
views
Stuck chain sprocket on bottom bracket
I have a 3pc sinz BMX crank set that I've taken off of an intense pro to install on a 1999 Redline RL380. After cleaning and greasing the bearings I went to install the bottom bracket axel with the ...
- 5,202
0
votes
0
answers
79
views
0
votes
0
answers
87
views
Initial resistance / detent feeling in hydraulic brake
My brake has a up-front amount of pressure it needs before it will then engage. It feels like I'm actuating a clicky button and not a continuously moving brake. What could be causing this?
- 101
0
votes
0
answers
179
views
My shimano ultegra quick release is not working because the ball bearing inside got lost, can someone help me to identify the size of it?
Can someone help me because my ultegra caliper quick release system is not working because the ball bearing inside got lost (see picture below)
- 5,202