Product Overview
These are so much more than 11 speed downtube shifters. With over 50mm of total cable pull, these shifters will work with just about any derailleur. We've tested them on Shimano 11 speed road, Shimano 10 speed mountain (Dynasys) and Sensah SRX. Here's what you need to know:
Designed for 11 speed, but will work with fewer speeds.
Better option for 10 speed drivetrains than our other Dia-Compe levers.
Right barrel is larger than the left for more cable pull.
Not compatible with bar end or "thumbie" mounts because of the oversized barrel.
Downtube boss fitting “Non-Index” friction gear shift levers. These shifters have a ratcheting mechanism so they aren't indexed.
These are ideal for bikes where indexing is problematic or for those who simply prefer the traditional infinitely adjustable trimming function of friction type gears. This 11 speed version has enough cable pull to operate Campag, Sram and Shimano 11 speed mechs.
Polished aluminium lever with Dia-Compe’s ‘Light Action’ ratchet mechanism that extracts lever friction in one direction - Effectively, the rider is only pulling against the gear mechanism spring when shifting down and the spring is assisting the rider when shifting up – making a very easy to use, light action, friction-based gear lever.
To calculate the amount of total cable pull your drivetrain requires use the following formula:
Total cable pull = Cable pull of intended shifter * (s - 1), where s is the number of speeds of your cassette. If the total is less than 50mm, these shifters should work.
Price Per Pair.
Metal cable ferrules and gear outer is best and a light oil should be applied to the inner cable when installing - This promotes life and helps keep the moisture out.
Top Tip - Pop a little Loc-Tite on the D-ring bolt threads, this will unsure the bolt does not rock loose when riding the rough stuff.
Please Note - We have tried this in the workshop with a few different mechs, and found that it shifts with no problems - However you should match the speed of the cassette to the speed of your mech - EG - 11 speed cassette matched an with 11 speed mech.
The reason for this, is that some 10 speed mechs are built in such a way that no matter how much the limit screw is out, it cannot stretch to 11.
And this can be true for others, like a 9 speed mech shifting with a 11 speed cassette - The mech just cant manage.
But then using a 9 speed mech with a 10 speed cassette could be fine. It very much depends on mech spec and cassette ratio.
Unfortunately we have not been able to try them all, yet......
