Unanswered Questions
76 questions with no upvoted or accepted answers
9
votes
1
answer
953
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
485
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
1
answer
193
views
The bike derailer will automatically drop to the lowest gear in the rear whenever my cadence slows
I have a REI Coop CTY 2.2 bicycle. Whenever I am biking and my cadence slows down, the bicycle derailer automatically (I am not shifting) to the lowest gear on the rear derailer. Any suggestions on ...
- 47
5
votes
0
answers
166
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
4
votes
0
answers
310
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
3
votes
0
answers
70
views
How to properly adjust front derailleur height when it can sway significantly once the clamp bolt is loosened up?
I'm trying to adjust derailleurs myself, for the first time .)
the model is DEORE XT
following the how-to
https://www.wikihow.com/Adjust-a-Shimano-Front-Derailleur
the very first step - adjusting its ...
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
116
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
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
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 ...
CommunityBot
- 1
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
- 21
2
votes
0
answers
105
views
Identifying this road bike brand
Can someone help me identify this frame? It was given to me in Switzerland. My uncle and cousin bought it already painted grey. I noticed an engraved logo in the dropout, but it does not look like it ...
- 4,159
2
votes
0
answers
125
views
Gear up lever will not move
I just got a new bike and unfortunately fell off it on the first ride, now the lever to change gear for my derailleur Mezzu Microshift is stuck in the position it would be if you had upped a gear ...
- 128k
2
votes
0
answers
118
views
Pirelli tires (mixing 700X23c and 70025c)
A bike shop (whom I trust) replaced my tires with new 700X25c Pirelli P Zero Zello 4S front and rear, the rear tire did not clear the fork/frame for some reason, they switched the rear 700X25c with ...
- 21
2
votes
0
answers
302
views
Why is my bar tape wearing out quicker on one side?
My bar tape has been wearing out on the left where my palm meets the bar with I ride on the hoods, but not on the right. I've noticed the same thing on the gloves I usually wear.
Is this cause by how ...
- 41
2
votes
0
answers
417
views
Using 11-36t 9 speed derailleur with 11-40t 9 speed cassette
So I've got the shimano altus rd-m2000 and it says that it only supports 11-36t. However, I've seen people on forums say that it's possible with this derailleur. Even it I was wondering if with a ...
- 21
2
votes
0
answers
1k
views
Grinding noise from headset
I have a 5 year old Merida Ride 100, which has done about 5000km. It mostly has been in dry conditions, but has seen some wet conditions once in a while. After the last ride, I noticed some grinding ...
- 59
2
votes
0
answers
84
views
What's the type of polymer material used in friction bushings in Sram rear derailleurs clutches?
The friction bushing of an (older) Sram rear derailleur clutch is shown below. What type of polymer material are these made out of? I'm also interested to know what friction materials are used in the ...
- 151
2
votes
0
answers
216
views
What type of frame could this be?
Recently purchased this 1x11 rebuild. Decals have been removed and it has a fresh powder coat. The stripes are coloured electrical tape so don't go by that... I've heard it could be a Miyata or ...
2
votes
1
answer
98
views
Old bike: replaced rear axle but the tire goes off the axis when I get on it
I just broke and then replaced my rear axle on an old timey race bike I bought online.
Everything seems to go smoothly when the bike is up on a stand or on at my side, but once I get on it and try to ...
- 47
2
votes
1
answer
408
views
Is this a real Concorde or just a replica?
I'm confused with this, the lugs in this bike look identical with another Concorde but the tubing sticker clearly says "Reynolds". (Concorde only uses Colombus, right?)
1
vote
0
answers
63
views
Searching for vintage piece
I'm trying to repair my vintage gazelle impala bike and I'm missing just one piece :( Does anyone know where I can find the piece seen in the photo? It's part of the brake cable anchor bolt.
Thank you!...
- 11
1
vote
0
answers
60
views
Shifter only clicks in one direction
My bike shifters on both the front and rear derailleurs suddenly stopped wanting to shift down. They both shift up no problem and the cable looks fine but when I try to shift down on either of them ...
- 11
1
vote
0
answers
38
views
Compatibility Shimano rear derailleur RD-6300
I have this Shimano 600ax. Due to my stupidness I broke the body of the rear derailleur endings its life. There are other rear derailleurs (RD-6300) on ebay for example but these are very expensive ...
- 5,202
1
vote
0
answers
574
views
Shimano 105 r7000 front derailleur hard and clunky shifting, shifter harder to shift
A total newbie to DIY bike repair here, and my Shimano 105 r7000 FD is shifting really harshly after a wash. Washed it with dish soap plus water solution, however I did not give the FD any specific ...
- 4,536
1
vote
0
answers
176
views
Golfer’s elbow (Inner elbow pain) from drop bars?
I’ve been cycling for 3-4 years on a flat bars without any pain in My joints . recently I switched to drop bars, My arms are slightly bent when I ride so My bike fit is ok But I’m having an inner ...
- 31
1
vote
0
answers
66
views
I have a double walled bicycle wheel frame seam that has a gap underneath NOT on top? It does not go all the way round, only underneath. Is this fine?
I have a double walled bicycle wheel frame seam that has a gap underneath NOT on top? It does not go all the way round, only underneath. Is this fine?
The bicycle is a No Logo X-type racing alloy bike ...
1
vote
0
answers
131
views
Cable rubs on mountain bike derailleur
the hole were the cable goes through does not have a guide. The cable rubs against the aluminum housing. What is suppose to go in there?
- 831
1
vote
0
answers
135
views
Rear Derailleur Noises
When I pedal on my bike there is a loud noise that increases as I go into easier gears on the cassette and in the easiest gear I can see the chain catching on the derailleur jockey wheels, why is this?...
- 128k
1
vote
0
answers
171
views
SRAM Yaw Front Derailleurs
Can anybody help me with any tips on fine-tuning the adjustments on this derailleur (Force 22)? The positioning as far as I can tell is good, I can stick a penny between the teeth of the big ring and ...
- 14.6k
1
vote
0
answers
80
views
Getting the correct road bike size, moving from MTB
Currently I have a Large Stumpjumper 2021 29er.
The size was advised by the shop I purchased it from. It was OK at first but I ended up having a bike fit to adjust a few things (slightly longer stem ...
- 5,202
1
vote
0
answers
134
views
Cassette noise in gears 1,2 and 3 on newer bike
I was out riding when I broke my chain (too high of a gear and too steep of a gradient). Got chain replaced and now my cassette gear 1 (easiest gear) takes more power to pedal than gear 2 and when I ...
1
vote
0
answers
1k
views
Bent shimano 12 speed slx m7100 rear derailleur. Cause?
Rear derailleur (mileage: 600 miles) simply bent during my ride (I didn't crash and didn't notice something hitting rear mech). Bend is significant. It seems to me that the derailleur cage is bent, ...
- 75.8k
1
vote
0
answers
43
views
Chain length with new derailleur
I bought a 8spd chain and am putting it on a 7spd bikes. I thought I could use either a seven speed or eight speed chain. But it looks like the chain is way too long should I take out some links if ...
- 831
1
vote
0
answers
140
views
Front dérailleur does not shift into largest chainring
I have a Shimano ST-EF60-8R shifter with a Shimano FD3303 front derailleur - it does not go into 3rd gear which is the largest; it feels like the wire is going to pop. I just bought the bike, a Trek ...
- 75.8k
1
vote
0
answers
1k
views
Shimano 9 Speed Cassette with Microshift Advent 9 Speed Road Shifter
I fancy setting up my old but amazing Cannondale F1000 with a dropbar and corresponding road shifters.The only affordable system I could find for that is the Microshift Advent 9 group. I'm happy with ...
- 11
1
vote
0
answers
107
views
Adjusting rear derailleur
I have a 18 speed mountain bike. (Huffy)
I recently had my rear derailleur replaced along with new shifters.
Shifting in the lower gears is smooth and there is no noise when pedaling.
However, when ...
- 1,232
1
vote
0
answers
414
views
Standard vs wide shimano shoes
Would my normal sized feet still fit snug on a wide shimano shoes? I’m looking to buy the RP3 but only the “wide” is available. I’m buying online so i can’t personally try it on. Appreciate all the ...
- 69
1
vote
0
answers
906
views
What is the thread size/measurement of the derailleur barrel adjuster?
The barrel adjuster threads on my commuter bike's RD have been marred when the barrel adjuster got bludgeoned on a side crash and I want to chase the threads before screwing in the replacement barrel ...
- 1,305
1
vote
0
answers
637
views
Need help identifying a vintage road bike, possible Benotto 3000
I have this bike that I bought at a local store, I'm from Costa Rica> The manager sold it to me as a Benotto, but I can not find anything that tells me that it is apart from the stickers. The headtube ...
- 75.8k
1
vote
0
answers
791
views
SRAM eTap rear derailleur chain drop issue
I’m having an issue with my chain falling off the lower pulley wheel when (1) I hit a significant bump or (2) shift from large ring to small ring. But only in cogs 6, 7, 8. Any suggestions? I’ve ...
- 5,698
1
vote
0
answers
82
views
1
vote
0
answers
381
views
RD-TZ40 ME Replacement
I've damaged the rear derailleur on my bike, and it needs to be replaced. I don't really have an LBS. I've looked around online, but I can't seem to find a correct replacement. I should clarify that ...
- 11
1
vote
0
answers
426
views
Help ID'ing early 90's Lemond
I was wondering if anyone could help me identify this bike, or point me to the resources I could use to get get a better idea about what it is.
--
Pictures @ Imgur
Cross-post on reddit
"This seems ...
- 11
1
vote
0
answers
162
views
Can anyone identify this second hand bike?
I am looking into getting a new (for me) road / TT bike and this came up but I think it isn't a Specialized Shiv...
many thanks
- 75.8k
1
vote
0
answers
96
views
1970-80's Roadmaster bike makes a clicking noise when turning right
A 70's/80's Roadmaster Pursuit bike makes a clicking noise when turning right. It doesn't make any noise when riding straight or turning left. It doesn't seem to matter how close the turn is. I have ...
- 29
1
vote
0
answers
186
views
Could somebody please identify this bicycle?
I have been looking into purchasing a second hand road bicycle for my daily commute. I went through many possibilities and would like to know if any of you have seen or can identify the attached. Do ...
CommunityBot
- 1
1
vote
0
answers
140
views
Is this FD compatible with this crankset: 2 teeth too few
TL;DR:
Q: Can I use an SLX FD on an all SRAM rig?
A: Usually not. In the current case Trek Slash 7 2013 & Shimano M786 - no adjustment sufficed to produce a noise-free ride.
I am a proud owner of ...
- 13.9k
1
vote
1
answer
186
views
Why are my quill pedal cages "wobbling"?
The plates and connectors on my old quill pedals "move around" in relation to the pedal axle itself: In the photo below, I'm pushing the pedals to opposite sides to show how the pedal cage "distorts". ...
CommunityBot
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