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5 votes
2 answers
1k views

Can I replace a 10 speed cassette with an 11 speed?

I currently have a focus road bike running on Ultegra group set. The rear wheel is currently 10SP. I’m looking at purchasing new wheels, and most of the second hand ones come with fitted 11SP. Can I ...
Kyle McDonald's user avatar
3 votes
2 answers
2k views

Can I upgrade my 11-28t cassette to 11-34t with Ultegra 6800 rear derailleur?

I think I am okay here but would be really good to triple check! My current cassette: Shimano 105 5800, 11-speed, 11-28t My front chain ring: 52-36t My rear/front derailleur: Shimano Ultegra 6800, 11-...
James O'dare's user avatar
2 votes
1 answer
262 views

Tiagra 4600 trigger shifters, 10-speed 105 RD-5701-GS derailleur and 11-32 cassette compatible?

My Cannondale Quick 1 Carbon has Tiagra 4600 trigger shifters, a 10-speed 105 RD-5701-SS derailleur and a 12-30 cassette. I would like to change to a 11-32 cassette, and understand that I would ...
Malcolm Ratcliffe's user avatar
3 votes
2 answers
296 views

11-36 11spd Cassette with Shimano RD-M8000-GS?

I'll try to be concise here, but lots of numbers coming your way... Currently running Shimano 1x11spd, 11-46 cassette with RD-M8000-GS rear dr. The three lowest sprockets are -32-37-46. The derailleur ...
Bob's user avatar
  • 31
2 votes
2 answers
1k views

9 speed Shimano (shifter+derailleur) + 8 speed cassette

At the moment I have a wheel with a Shimano 8speed cassette (HG30-8I) (11-30 or 32T) and also I have following rear derailleurs: XTR (RD-M952) (9 sp) GS Altus (RD-M310)(7/8 sp) SGS Questions: ...
Daniel Perez's user avatar
3 votes
3 answers
2k views

11-speed cassette, freehub and wheel compatibility

I have two wheels and two 11 speeds cassettes. With one combination of cassettes and wheels, shifting is reliable. With the other combination, the position of the cassette relative to the derailleur ...
NotRelevant's user avatar
4 votes
2 answers
7k views

Ultegra 6800 shifter with R8000 rear derailleur?

I'd like to replace a Shimano 105 5800 11-28 cassette on one of my bikes (CAADX 2016) with a CS-HG800-11 11-34 to get a wider range of gears. My rear derailleur is Ultegra RD-6800-SS, which can't ...
NPE's user avatar
  • 649
5 votes
12 answers
45k views

Fitting a 9-speed 11-50T cassette on MTB: which derailleur?

I'm trying to understand if its possible to fit a 9-speed 11-50T cassette (found one on Ali) on my MTB. The plan is to go 1×9. The problem is that I can't seem to understand the if a specific ...
user3510526's user avatar
2 votes
2 answers
8k views

Is Ultegra 6800 GS compatible with an HG800 11 speed 11-34 cassette?

I'm running Ultegra 6800 with a 52-34 chainring up front (not a typo: I replaced the 36 with a 34), and a 6800 GS (medium cage) derailleur at the back, and a 12-29 rear cassette. It works well. ...
Jim's user avatar
  • 247
0 votes
1 answer
9k views

Will a Shimano MTB 9 speed derailleur work with 10 speed cassette? [duplicate]

In general, what issues am I likely to run into, if I use a 9 speed derailleur with 10 speed cassette? Is the chain width main problem? I'm interested in Shimano XT CS-M771 cassette/XT M772 Shadow 9 ...
greppz's user avatar
  • 57
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
3 votes
1 answer
287 views

Can I Upgrade shimono Ultegra 9 speed 12-27 cassette

I have a 2009 Trek 7.7 FX with Ultegra 12-27T cassette, 50/39/30 Front triple. I want to upgrade the rear cassette to give better hill climbing gears. Can I fit an 11-34 Rear cassette and if so what ...
Nigel's user avatar
  • 31
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