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Unanswered Questions

42 questions with no upvoted or accepted answers
1 vote
0 answers
178 views

Can i use claris R2000 rd on 14-34T mega range sprocket?

I have sprocket 14-34T with mega range. I planned to change my old (maybe 1990's) shimano tourney rd to shimano claris R2000 medium cage. Some of my local bike shop said that i can replace with claris ...
1 vote
0 answers
223 views

Direct mount rear derailleur

I'm upgrading an old MTB for commuting, it had a 5 speed on the back but I'm going to be putting on a new 26" rear wheel with a 7 speed cassette because the freewheel axle wobbles, makes noises ...
1 vote
0 answers
91 views

Campagnolo rear mech screw type

My limit screws' heads have gone rusty, I want to replace them for looks and to make sure they are easy to adjust on a ride. I would love hex rather than Philips heads! Does anyone know the type of ...
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 vote
0 answers
298 views

Can't get in first gear on Shimano ten speed block

Just replaced drive chain on mtb ... new cassette (Shimano 10 sp ) new chain (Shimano 10sp) new rear mech (Shimano 10sp long) and new (Shimano 10sp). I've set bottom stop tensioned cable and adjusted ...
1 vote
0 answers
789 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 ...
1 vote
0 answers
48 views

early 1993 Trex 4200 aluminum frame

Im having a problem with my bottom bracket fitting my bearing cups and axle.I have 68mm tapperd thread Suntour XC pro 124mm axle .I tighten up the cups and the axle still has a lot of Play .SO I ...
1 vote
1 answer
69 views

Compatibility question

I was wondering on a mountain bike what rear derailleurs work if have a 21 speed bike. Additional information: 7 ring rear cassette and 3 in the front Will an 8 and 9 speed rear derailleur work or ...
0 votes
0 answers
16 views

Shimano Ultegra 9500 set rear mech skips 8th gear

I'm riding a stock Schwinn fastback road bike from around 2004 that came with a Shimano Ultegra 9500 set, with 2x9 speeds. I have never messed with the derailleurs as they've always worked fine. The ...
0 votes
0 answers
63 views

How to replace a band (hub, drum) brake with a freewheel

I am looking to convert my bicycle into a semi-electric bike by adding a freewheel. The 2 freewheels will allow me to use either pedals or an electric motor to move the bike. However, I don't have ...
0 votes
0 answers
167 views

Replacement pulleys for Shimano Deore XT RD-M739 SGS derailleur (8sp)

Wondering what replacement pulleys I should get for this type of derailleur. All details of the derailleur can be found here: https://velobase.com/ViewComponent.aspx?ID=4f90a749-6254-4a37-840d-...
0 votes
0 answers
62 views

My derailleur doesn't go from gear 1 to gear 2 by itself but the rest does

The derailleur doesn't go from gear 1 to gear 2 by itself so I have to manually push it, it works perfectly fine shifting from 2 to 7 but when I try to change the gear to 8, it stays on 7
0 votes
0 answers
70 views

My bike won’t change out of first gear

NoI’ve tried changing the looseness of the H and L screws but my great problem remains the same. It won’t change out of first gear even when I manually put it into another gear. The back derailer is ...
0 votes
0 answers
315 views

Which currently available rear derailleur would work as a replacement for a Schwinn Boundary 29 Pro Shift?

I would like to change my rear derailleur. I have a Schwinn Boundary 29 inch, Pro Shift. I am not sure what year. Which currently available derailleur would mount up to the frame and operate correctly ...
0 votes
0 answers
16 views

Claude butler urban rear derailer upgrade

Hi looking to upgrade rear derailer. Currently has shimano tourney tx30 with 3 x 7 set. Can I fit a deore instead?

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