Yep sorry as I said pretty new to this. Looking at 11 speed. If that helps.
You will need new cassette, new chain, derailleur, shifter, possible also new chainring if current is not compatible with 11sp. You already have compatible Shimano HG freehub body on rear wheel ...
Those SRAM EX1 cassettes are 8-speed and supposed to be the perfect solution for ebikes. With a powerful motor who needs all those gears? And having only 8 gears allows them to be thicker and therefore stronger doesn't it? And that goes for the chain too? Hmmm, not convinced about that, someone on here said that the EX1 chains are the same width as 10-speed. if true, that must go for the gears as well!
After a quick Google, I see that prices for a new EX1 cassette range from £287 to £406. Ouch! I can see why maybe you want an alternative.
After trying an emtb with the 8-speed EX1 transmission, I did not care it was supposed to be "premium". I just could not find a gear I liked and was always changing gear. I suppose I could have got used to it, but why pay all that money and have to get used to something? The 11-speed transmission on my current bike is just fine thanks.
As for alternatives, unless it is another 8-speed you will have to change your shifter and mech which could be an expensive business. Not sure that Shimano even do 8-speed XT (I can't be arsed to Google to find out). Then there is the hub design to consider. I can't offer any advice there other than it is important you find out what hub you have first.
How about an 8-speed alternatives to Shimano as well as SRAM? How about Box? Do you own research, but what about this Box 4 8-speed drivetrain groupset for £155! Yes that is a cassette, mech, shifter and chain for £155. But will it fit your hub? (or do you have to buy another freehub as well).
Four 8 Speed Drivetrain Groupset
Buy your Box Four 8 Speed Drivetrain Groupset - Groupsets from Wiggle. Our price £155.00. Free worldwide delivery available.www.wiggle.co.uk
