Apache RTR which is an OEM manufacturer of BMW motorcycle GS310 has gained a huge respect in my mind after I came accross this engine..
Its a master piece, it needs a CBR series plug, its hyper responsive and you just touch the throttle and it instantly readlines..
it took us a whole week to get its electricals sorted out..
it does not works with astandard CDI/ TCI we have and had to work around it to make timing advance as it revs fast..
long story short... its clutch, oil pump, oil filter every thing which we opened was actuall well engineered llike a pro..
loved working on it..
frame men bolt to bolt fit howa.. it was a moment to do bhangra moves...