I've has several bikes that could do with a gear indicator, I've no idea what gear I'm in on the Shitebird most of the time cos it's so smooth and torquey. The only reason I've not bought one is cos they're so bloody expensive. Why are they so expensive?
I bough mine from bikesHPS.com 2010 848 and go the DS version. Fitting is very simple, just click it into the data port under the seat; that it... Not had chance to calibrate it yet as bike is still in bits... Cheers, Bob