Hi, I've just bought a xt660z tenere with a smashed speedo. I'm new to xt's so am not sure of the functions that the speedo provides. I am planning to replace it with an after market unit.

Will this be possible? I've read one thread where someone has done this. So I presume I can.

What do I loose? I think I've read that there are diagnostics accessed through the speedo and fuel adjustments can be done through it as well, is this correct? Are there alternate ways around loosing these?

Does anyone have a spare speedo laying around?
Cheers