My 5A turntech has been frickin awesome as well! Audibly it turns over faster than the OEM battery did when warm. Every once in a while the 510 will hang at the compression stroke, just takes a tickle on the manual decomp lever to free it up and bang! My stock battery could not overcome the same situation. Hope to see these Lithium batteries available for larger displacement street bikes in the near future
If you can read Italian, if you can't you can always Google translate. http://www.desmodromico.com/tuning/turntech.asp The bigger batteries don't have fancy plastic cases yet.
