Bender 835 big bore, or 780

the Bender kit uses steel sleeves, which are really a pretty archaic technology, nicasil offers a higher yeild strength (way higher) and a lower dynamic coefficient of friction, meaning less parasitic loss, better fuel mileage, and more power (ofcourse the bigger bore of the 835 goes a long ways towards knocking the power gap back down.)

think for a second about what the last performance sled yamaha made that had sleeved cylinders tho, or any manufacturer for that matter.
 
the reason for using the cast iron sleeves is that when you bore the cylinders
they become dangerously thin. the cast iron allows a larger diameter bore & retains a safe wall thickness. i have over 3000 miles on my sx800 & 2000 on my srx835 - trouble free. the 800 was dynoed @ 162 hp & the 835 @ 188 hp.
bob
 
big bores

Thank's for the reply! Did you modify the carbs on the SRX? How much of a performance differance could you feel and what's the power delivery like compared to stock. Also what are you running for clutching?
 
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