10 speed shifters with 11 speed rear mech
- Thread starter grellboy
- Start date
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If it is SRAM, then should be OK.
Otherwise the cable pull from the shifter won't match the derailleur if you want index shifting. It may be possible to use friction shifting and not indexing - but that depends on the exact make of bar end shifters - they need to be the sort for which you can turn off the indexing and work on friction mode only. Most Shimano 10sp don't allow friction shifting, but then again most Shimano 9sp shifters do.
You then also need to learn how to change gears by feel using friction rather than through indexing, which can be fairly difficult with the narrow cog spacing on an 11-speed cassette.
Otherwise the cable pull from the shifter won't match the derailleur if you want index shifting. It may be possible to use friction shifting and not indexing - but that depends on the exact make of bar end shifters - they need to be the sort for which you can turn off the indexing and work on friction mode only. Most Shimano 10sp don't allow friction shifting, but then again most Shimano 9sp shifters do.
You then also need to learn how to change gears by feel using friction rather than through indexing, which can be fairly difficult with the narrow cog spacing on an 11-speed cassette.
DCLane
Found in the Yorkshire hills ...
- Location
- Dewsbury, West Yorkshire
Personally I'd fit a 10sp rear mech - it's just easier.
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
8,9,10 Shimano were compatible with the shift ratio. 11 speed is not.
SRAM - not so sure - it's supposed to be 1:1 ratio but road mechs might be compatible, but 11 speed MTB is 1x only. 10 speed MTB was mainly 2x, so you have very different mechs to cope with the cassette range (much longer cages).
SRAM - not so sure - it's supposed to be 1:1 ratio but road mechs might be compatible, but 11 speed MTB is 1x only. 10 speed MTB was mainly 2x, so you have very different mechs to cope with the cassette range (much longer cages).
Lloss
Well-Known Member
- Location
- Torno Sachsen Germany
If you only want ten speed it will work ok .
Ajax Bay
Guru
- Location
- East Devon
Precis:
1. The shifter determines cable pull – the length of cable the shifter pulls for each ‘click’. Nearly all the cable pulls are uniform for every click (exception some newer Campagnolo ergos).
2. A derailleur’s shift ratio is the ratio of lateral movement distance of the derailleur to the cable pull. E.g. older Shimano RDs have a shift ratio of 1.7 - for every mm of cable pulled by the shifter, the derailleur will move 1.7 mm.
3. Sprocket pitch is the distance between (centre of) top and bottom sprockets of an ‘n’ speed cassette divided by ‘n-1’ – distance the RD has to move the chain for a perfect shift from one sprocket to the next.
These three elements are related:
Cable pull x Shift ratio = Sprocket pitch
Shimano 10 Road cable pull = 2.3 Shift ratio = 1.7 Sprocket pitch = 3.95
Shimano 11 Road cable pull = 2.7 Shift ratio = 1.4 Sprocket pitch = 3.74
Shimano 10 bar-ends with Shimano 11 RD cable pull = 2.3 Shift ratio = 1.4 RD cage will move 3.2mm each click.
Mismatch, assuming both bar-ends and RD are Shimano. If a mixture, then a Shimano 11sp RD might (in theory) work with 10sp Campagnolo bar-ends and a Shimano 10sp cassette. Careful research required.
HTH
Detail: https://www.artscyclery.com/science...ce-behind-the-magic-drivetrain-compatibility/
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