| 998S Broken Valve Collets
Hi
Just had the race bike in for its second year service. Would have done it myself, but wanted to ensure I got my annual stamp in the Service Book.
Response was that I've had a number of broken valve collets, and that this is *apparently* "common" with the Testastretta engine.
Does anyone else know of this? Is it just because it gets a hard life from me, or is this really common on road-bikes too?
Bike has 5,800 miles, only about 300 of which are race miles.
Any information would be welcome. | 
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