hi yall bike has gone in for a spray job today to complete the colour setup and i am going to fit an R90s fairing to it to make it more comfortable at high speed ,i was also asked if i would like to put in light Wiseco pistons in because it smoothes out the engine and alows beter accelaration and rev limit for high speed (dont want a racer but a classic bike) any thoughts
thanx Brendan
The R65 isn't a 'fast' bike, and doesn't take upgrades and modifications to the engine very well.
Keep your engine stock, as you can put a lot money into it, and not really see an appreciable increase in performance.
If I had my engine apart, the one thing I would do, is to 'balance' the engine, getting the pistons connecting rods and hardware etc., as close as possible in weight to each other.
Remember BMW stands for Bavarian Motor Works, they know what they are doing when they build an engine, they've got a pretty good design for performance and longevity in the boxer engine.