Talked about by many companies for many years but these actually seem to have gone into production and are available to buy (at £250)

http://www.ison-distribution.com/english/product.php?part=GLC5SRMK

Personally unconvinced it’s a problem that needed solving but many seem to.

The simple fact is not everyone likes grip shifters, I believe I saw the pre-production unit at Core. There’s not a huge lot to go wrong with them, what’s not to like?
Well except the fricken price! Youser!

I presume it replaces the external click box too?
Which means a ratcheting system.

<Ballentyne>I’m oot </Ballentyne>

I reckon electronic shifting with a wee stepper motor is the way forward.