Ultegra 6700 mehcs with 105 cranks, cassette and chain.

h14turbo

Hi

I was wondering if I could us Ultegra 6700 shifters and mechs, but keep my shimano 105 chainset, cassette and chain? Cheers

JohnnyAllez

No probs, as long as everything is Shimano 10 speed it`ll work OK. The new 6700 shifters are great

h14turbo

Brilliant, I know, thats why I want them.

hopper1

You might have an issue with braking... :shock:
I have the new 6700 groupset and I believe the levers have a different pull ratio (?) to the rest of the range, but the same as DA.

JohnnyAllez

I`m using the new 6700 levers with 2009 Tiagra brakes without issue.

hopper1

JohnnyAllez wrote:

I`m using the new 6700 levers with 2009 Tiagra brakes without issue.

I'm using them with 6500 deep drop callipers... They're certainly not 'that' good :shock:

maddog 2

the new 6700STI do indeed pull more brake cable than the older STI so if you use them with the older non-6700 calipers the the lever will be firmer and you'll get less power.

They'll still 'work' but they won't be as good. Whether this matters depends on how big a difference it is (I've not tried them myself so can't say) and how important braking performance is to you. And indeed you may even prefer this setup if you like a firm lever.

It a similar story - but perhaps a more extreme example - when you use V-brake levers with roadie dual pivots. They 'work' but aren't very powerful.

hopper1

maddog 2 wrote:

the new 6700STI do indeed pull more brake cable than the older STI so if you use them with the older non-6700 calipers the the lever will be firmer and you'll get less power.

They'll still 'work' but they won't be as good. Whether this matters depends on how big a difference it is (I've not tried them myself so can't say) and how important braking performance is to you. And indeed you may even prefer this setup if you like a firm lever.

It a similar story - but perhaps a more extreme example - when you use V-brake levers with roadie dual pivots. They 'work' but aren't very powerful.

Tried for the very first ride on a wet, hilly sportive :shock: ... Nearly ruined my new seat, too! :oops:
Not too bad in the dry, but obviously, when paired with dep drops, I expected them to work in the wet, too (better than they did)

h14turbo

Ok, I am planning on putting the planet ultralight cnc brakes on. Would they work fine? Planet x seem to think they will be fine.

hopper1

Well, if PX say it's ok, in writing, you should have some come back if they're not!
Good luck...

careful

Apologies for tweaking the thread a bit, but did anyone else find it a real pain fitting the gear cables to 6700 sti. Once fitted though, they work beautifully and are comfy grip.

JohnnyAllez

careful wrote:

Apologies for tweaking the thread a bit, but did anyone else find it a real pain fitting the gear cables to 6700 sti. Once fitted though, they work beautifully and are comfy grip.

Right-hand side lever, cable went straight in. Left-hand side lever, you`ve gotta take off the small plastic "inspection hatch" on the outside faceof the lever body to make sure you can feed the cable the correct way over the drum, it`s easy for it to go the wrong side of the mechanism. Once you`ve spotted which way it has to go, it goes in no probs. (the Shimao instructions are pretty fool-proof)