from the advrider thread: Bosch 0-280-155-892 (06A-906-031-J)
I'll have a look in the shed tomorrow to confirm I have the same one as mine came 2nd hand from an advrider inmate.
That would be about right. I checked the part number on my box and it does match. The part number in brackets is the VW/Audi part number.Cheapest i can find at present is around £85!
Hey Rossi...
Have ever looked at what different pistons might be available for the rotax? I have heard of 102mm pistons being used ... making the engine a 678 cc

I know they use the engine in supermono racing so there must be options out there. 678 would be fun. Unless you change the compression, I believe that putting in a larger piston gives very similar engine characteristics, just scaled up to match the new capacity. Same linear power, just more of it![]()
In case you'd not seen it, that one left in Chepstow (ex police) is now down at £2999 or offers. 9 offers gone in on it at the moment. They are good bikes.
http://cgi.ebay.co.uk/BMW-G-650-X-C...6430742?pt=UK_Motorcycles&hash=item5643e77916
Hi guys
I bought one of the Chepstow plod bikes! Yes they were a bit scruffy but for sub £3K they are in very good mechanical nick! Nothing that a good jet wash and service can't sort out! Just needs a bit of plastic welding on the fairing and a set indicators and mirrors. It just been though its MOT! Mine came with a load of Touratech bits! I will be riding it for a bit then swapping/upgrading suspension/wheels/exhaust/seat for after market stuff anyway so wasn't to worried about the condition so will be putting stuff on ebay soon! Let me know what you guys would like?
If your willing to put a bit of elbow grease and are thinking of upgrading stuff later they are a good buy! The chap who is selling them is very genuine also!
I'll be at Horizons in a few weeks. But on my Transalp which is up for sale!
Cheers
Welcome along to UKSGSER.
If you've got a straight front wheel going spare anytime soon - give me a shout,
Cheers
Paul
Hi guys
I bought one of the Chepstow plod bikes! Yes they were a bit scruffy but for sub £3K they are in very good mechanical nick! Nothing that a good jet wash and service can't sort out!
Did you have a look over the other one chapsgsx ? i take it they are both in similar condition the reason i say that is ive emailed the guy to see if i can go and have a look at the other![]()
Cheers Paul
I'm going to have a play first! See what I like and don't like! I want a set of Excel rims either from Touratech or Woodys Wheels when he gets back to me! If there is anything left after I have had a go I'll give you a shout! lol