www.youtube.com/watch?v=VphOefS9dek
http://www.youtube.com/watch?v=tsQgDv5lvAk
A
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Moderators: Dan J, Diesel Dave, Crazymanneil, Stuart
'Thank you for the tips, Dan. I had already calculated that the 16t would have suited me just fine, with its 52 mph top & cruising speed at 3600. But I allowed Henry's greater experience in all this to talk me out of it & adopt the 17t. Henry had built another customer's bike there, fitted with the 17 in order to pull a sidecar. I still thought the gearing far too high for this purpose, since the 350 petrol is fitted with the 16T sprocket & develops more torque than the Yan clones at 19.7 ft/lbs vs 17 ft/lbs for our little diesel friend. The 350 petrol also develops 13 bhp @ 3600! Basically, I reasoned that an average of 50 mph up hill & down dale was all that could be reasonably expected from a continuous rating of just 8.5 bhp & perhaps 7 at the rear wheel, especially with 575 lbs of bike & rider to pull. So there wouldn't be much point overgearing the little engine & expecting it to pull a cruise speed of 60+ on anything other than a billiard table with no headwind.Dan J wrote:John, stick with the 17t and see how you get on with it before buying new sprockets or asking Henry to make changes. I went for an 18t from Henry and that's more than enough for the bike to cope with...