10 to 11 Speed Di2

[Lovey1]

Has anybody any tips in converting from 10 speed to 11 speed Di2? Any pitfalls i should avoid?

[Gareth79]

Which rear derailleur do you have? I think it used to be possible to use 10sp derailleurs with 11sp and vice-versa but they stopped it. Regardless, you can mix and match components, and so if you are getting a new Di2 RD it will work fine with whatever components you currently have.

[Lovey1]

Gareth79 said:

Which rear derailleur do you have? I think it used to be possible to use 10sp derailleurs with 11sp and vice-versa but they stopped it. Regardless, you can mix and match components, and so if you are getting a new Di2 RD it will work fine with whatever components you currently have.

Thanks. I am replacing the entire groupset so i don't anticipate any issues. i even plan to replace the wiring and battery as my issue with the existing setup is battery drain which is probably caused by the front or rear mech but possibly the battery or a short in the wiring. I was just wondering if there are any specific set up things i should check switching between the 2.

[Scoobyshue]

Will the freehub on your wheel accept an 11 speed cassette?

I thought that freehubs were 8/9/10 or 11/12 speed compatible.

[Lovey1]

Scoobyshue said:

Will the freehub on your wheel accept an 11 speed cassette?

I thought that freehubs were 8/9/10 or 11/12 speed compatible.

Now thats a good question and exactly the reason i asked the question....thanks!

[esuuv]

Lovey1 said:

Now thats a good question and exactly the reason i asked the question....thanks!

Shimano road freehubs are either 8/9/10 or 10/11/12.

Any recentish wheel set with have an 11 speed freehub, running a spacer if you have a 10 speed cassette on. 12 speeds fit on the 11 speed hubs (if anyone really had one yet)

[waynecyclist]

esuuv said:

Lovey1 said:

Now thats a good question and exactly the reason i asked the question....thanks!

Shimano road freehubs are either 8/9/10 or 10/11/12.

Any recentish wheel set with have an 11 speed freehub, running a spacer if you have a 10 speed cassette on. 12 speeds fit on the 11 speed hubs (if anyone really had one yet)

Just for information, an 11spd MTB cassette will fit a 10spd freehub body as it is narrower, 11spd road cassette will need an 11spd freehub.

[Gareth79]

Lovey1 said:

Gareth79 said:

Which rear derailleur do you have? I think it used to be possible to use 10sp derailleurs with 11sp and vice-versa but they stopped it. Regardless, you can mix and match components, and so if you are getting a new Di2 RD it will work fine with whatever components you currently have.

Thanks. I am replacing the entire groupset so i don't anticipate any issues. i even plan to replace the wiring and battery as my issue with the existing setup is battery drain which is probably caused by the front or rear mech but possibly the battery or a short in the wiring. I was just wondering if there are any specific set up things i should check switching between the 2.

Before you do that, try connecting a Di2 diagnostics box on (SM-PCE02, most bike shops will have one), that is able to identify power usage. It's probably just a maladjusted derailleur.

Everything else will just work though, you could buy a brand new 11sp RD and plug it in and it will work fine with everything else.

waynecyclist said:

Just for information, an 11spd MTB cassette will fit a 10spd freehub body as it is narrower, 11spd road cassette will need an 11spd freehub.

Apparently 11sp cassettes do fit on *some* 10sp freehubs, but it's luck of the draw, it depends how deep the grooves go towards the wheel. I have an old Hope Open Pro wheel and the grooves were too short, but some people have machined a few more mm on that model and run 11sp on them.

Edited by Gareth79 on Monday 31st January 22:27

[waynecyclist]

Gareth79 said:

Apparently 11sp cassettes do fit on *some* 10sp freehubs, but it's luck of the draw, it depends how deep the grooves go towards the wheel. I have an old Hope Open Pro wheel and the grooves were too short, but some people have machined a few more mm on that model and run 11sp on them.

Edited by Gareth79 on Monday 31st January 22:27

If it is a Hope hub you may be able to replace the freehub.

[Gareth79]

waynecyclist said:

Gareth79 said:

Apparently 11sp cassettes do fit on *some* 10sp freehubs, but it's luck of the draw, it depends how deep the grooves go towards the wheel. I have an old Hope Open Pro wheel and the grooves were too short, but some people have machined a few more mm on that model and run 11sp on them.

Edited by Gareth79 on Monday 31st January 22:27

If it is a Hope hub you may be able to replace the freehub.

Yeah I think I looked into that, it was £80 or something, and the entire wheel isn't worth much more, and I wanted to go tubeless (wiht proper tubeless rims) anyway. I am just rebuilding my main road bike with a new frame/wheels so I will probably keep the Kysrium wheels and sell on the Hope/Mavics, although it will probably only get £150 the pair tops...

[Lovey1]

Gareth79 said:

waynecyclist said:

Gareth79 said:

Apparently 11sp cassettes do fit on *some* 10sp freehubs, but it's luck of the draw, it depends how deep the grooves go towards the wheel. I have an old Hope Open Pro wheel and the grooves were too short, but some people have machined a few more mm on that model and run 11sp on them.

Edited by Gareth79 on Monday 31st January 22:27

If it is a Hope hub you may be able to replace the freehub.

Yeah I think I looked into that, it was £80 or something, and the entire wheel isn't worth much more, and I wanted to go tubeless (wiht proper tubeless rims) anyway. I am just rebuilding my main road bike with a new frame/wheels so I will probably keep the Kysrium wheels and sell on the Hope/Mavics, although it will probably only get £150 the pair tops...

Wheels i have are USE NF4.5's. They are quite a nice wheel with good hubs and pretty rare. I have spoken to them and apparently i may be lucky and they may take 11 speed. Just need to check whether there is a spacer. I have other wheels that i can use but would like to retain the USE ones.