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1 answer
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My bike has a 10 speed cassette. MTX hub motor takes 9 speed cassette can I remove last cog of my cassette without issues?

I need some advice. I have a Giant Anthem 2012 dual suspension bike. And want to put a 1500 watt 26" MTX cassette type rear hub motor onto it. I believe the MTX wheel can take up to a 9-speed ...
Chris Jamieson's user avatar
5 votes
2 answers
955 views

SRAM 53/39 along with 10/33

Can I run my old SRAM cranks (53/39) along with new 12 speed Force axs 10/33 cassette or do I have to run new cranks too?
Mick's user avatar
  • 51
5 votes
2 answers
2k views

Can I run 11-32t on my Bike and 11-28t on my smart trainer using the same bike?

I run an 11-32t on my rear wheel and completely forgot to check the specs of the 11-speed cassette I ordered for my smart trainer. Turns out the one I got for the trainer was 11-28t. Can I run the ...
Charlie's user avatar
  • 53
6 votes
3 answers
590 views

Vertical Dropout Derailleur Hanger for a bike that did not come with gears?

I have a bike that did not come with gears. It is a rear hub driven ebike with a single speed. Eventually when the warranty runs out, I want to put gears in it and turn it to a mid drive. Now I know ...
badcircle's user avatar
3 votes
1 answer
1k views

What else do I need to change if I upgrade my Sora groupset?

I have a Specialized Allez 2019 or 2020 with Sora groupset, but the crankset is Praxis 50/32, and the brakes are Axis. I changed the rear derailleur to a RD 5700 and I'm looking forward to upgrading ...
Matthew's user avatar
  • 31
4 votes
2 answers
945 views

combining technologies and speeds: shifter and rear derailleur (index, friction)

is it possible to combine an indexed shifter with old friction derailleurs? As the cable is moved by the shifter, I understand that derailleurs should work by default and by moved with mm that the ...
Daniel Perez's user avatar
4 votes
3 answers
2k views

Options for a super-compact crankset for touring (replacing Shimano 105 crankset)

I plan to use my new Canyon Endurace AL (11-34, 52/36) for some touring and I'd like some slightly more pleasant gears as I'll be carrying some weight (I have a tailfin rack I'm using with it) up some ...
Tom H's user avatar
  • 465
2 votes
1 answer
175 views

Bike build recommendation

Im planning to build a gravel bike and I already have the following: Flared Drop bar Tiagra STI R7000 10S Deore M4100 Sprocket 11-42 700c Rims Marin Alps Series Frame What other components should I ...
Krix Ian's user avatar
2 votes
2 answers
2k views

Suntour derailleur compatibility with shimano shifter

I bought today a bike with a Suntour rear derailleur (XR 150 8 speed) for my daughter. It has old rotating shifters I with to replace with triggers. Will a shimano 8 speed (e.g. Altus/Acera) fit this ...
rvil76's user avatar
  • 734
4 votes
1 answer
667 views

Pulley for 10 Gear Derailleur for 9 Gear Chain

I am using a 10 gear XTR derailleur on a 9 gear cassette with a 9 gear chain and the tension pulley of the derailleur looks like needing replacement (despite teeth being very sharp it seems to work OK ...
InternazionalIV's user avatar
1 vote
0 answers
57 views

Pie plate cog on SRAM 2x

Okay guys, I'm trying to re-find fitness in my mid-40s. My bike has a SRAM Apex (don't laugh, if it's good enough for Alberto Contador, it's good enough for me - and you!) 10-speed drivetrain with ...
Dieterich Buxtehude's user avatar
1 vote
1 answer
1k views

Tiagra rear derailleur and Deore crankset + derailleur compatibility

I want to buy this bike: http://en.author.eu/adventure/gravel-bike/author-ronin-2018-ua42901301-1154 For most time, I will be fine with the lowest gear being 34x34. However, occasionally I would ...
Tom83B's user avatar
  • 113
2 votes
2 answers
9k views

Will 2 x 10 speed front derailleur work with 11 speed set up?

Would an existing 2x10 front mech work with a new 11 speed rear set up? Using all Shimano SLX with 11 speed shifter, rear mech and chain. Front chain rings are 2 x SLX 38/28.
Cass's user avatar
  • 21
8 votes
2 answers
2k views

Help me understand my 8-speed uniglide compatibility issue

I have a Dura Ace 8-speed uniglide rear hub/freewheel marked 'Integrated 8 SIS' and an 8 speed uniglide 14-21T cassette. Two issues - the first being that the smallest cog needs to be a special 32mm ...
Lamar Latrell's user avatar
2 votes
3 answers
31k views

105 Shimano 10 speed shifters - compatibility with 11 speed rear derailleur

I am building a bike and I am using 10 speed Shimano 105 shifters. On the back I am using a 11 speed 105 rear derailluer (because is the only one I have at the moment). The cassette I am using is a ...
Paolo Goatspeed's user avatar
8 votes
3 answers
32k views

Choosing a rear derailleur for 11-42t cassette on a SRAM 10-speed 1x system

I have an 11-42t 10 speed cassette and a 42t narrow wide chainring. I cannot work it out definitely whether a Sram long cage rear derailleur will work with it. I think that this one should work but ...
Paddy Livingstone's user avatar
0 votes
1 answer
111 views

Can I use a Shimano XT 11-gear derailleur with a 10 ring cassette on a mountainbike?

I put a 40-11T 10-gear cassette on my mountainbike, but did not check whether it was compatible with my current xt shadow+ derailleur. Now the derailleur rubs against the cassette in higher gears. In ...
Cameron Lee's user avatar
1 vote
1 answer
72 views

9s rear deraullier with 10s chain

I have a 9s rear derailleur in a 10s transmission. It works fine, but I have concerns about if this configuration could produce problems in the long term. I know the 10s chain is narrow compared the ...
diego's user avatar
  • 13
2 votes
2 answers
5k views

Is a Shimano Dura-Ace 7800 rear derailleur compatible with a Dura-Ace 7900 11-27 cassette?

Is the Shimano Dura-Ace 7900 10 speed cassette with a ratio of 11-27 cassette compatible with a dura-ace 7800 rear derailleur? Some people say its fine but more important to me is what Shimano says ...
MartinCB's user avatar
3 votes
4 answers
5k views

Road Brifters with MTB Derailleurs

I've just bought a lovely Surly touring frame and I simply stuck all of my mountain bike components on it. That means I've retained a flat handlebar. I'd really like to stick drop bars on though and ...
Simon P's user avatar
  • 31
1 vote
1 answer
47 views

I have an old Sugino 110mm BCD ring set, can I replace low ring with SHIMANO FC-5650 chainring 34T?

I have a 48 tooth main ring with 165 cranks. FD is Sora double and rear is Tiagra short with Shimano 7 freewheel. If I can put this 34 ring on it gives me sufficient range for the next few months and ...
Brendan's user avatar
  • 73
2 votes
2 answers
5k views

8 speed shifter with 7 speed cassette

I just got a bike with broken hanger and derailleur. As the owner didn't want to put money in good parts, I installed a cheap Sunrun derailleur compatible with index, and a new hanger. Just after I ...
Alexander's user avatar
  • 1,874