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Old 11-20-2012, 01:48 AM   #11
chasbmw
Beastly Adventurer
 
Joined: Feb 2006
Location: Bath Uk
Oddometer: 2,042
My 1070 kit is fine after only 10000 miles or so, these kits have been around for many years now and I have never seen any chatter on the Internet that indicated that there is a problem. A new casting for the cylinders is very different than just fitting a liner to an existing cylinder as that used to be done with the old 1050 kits using venola pistons.

The Seibenrock kit in includes new longer conrods and a very nicer assymetrical cam and the components work very well together. It's not cheap though
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Charles
http://i46.photobucket.com/albums/f1...ps6e61ae2e.jpg
R90s 1070 replica, R90/6, 1958 R50
1971 Commando Fastback
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