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Quoted message said:There could well be more resistance in the new transmission because the
bearing surfaces have not bedded in.
I once had a CBR600 that recorded 82bhp at the back wheel on a dyno, it
then put down 86bhp immediately after having new chain and sprockets
fitted. Efficiency of a new chain drive is often reported at 98% or more
but old knackered drives are way, way below this.
Here's a decent link:
http://www.sdearthtimes.com/et1199/et1199s13.html
hth,
Tony B
Tony B said:
Here's a decent link:
Interesting about the big sprockets being more efficient because the
chain bends less.
So those compact chainrings on MTBs are harder work. Apart from a bit
more weight it implies that scaling up front and rear cogs would be an
improvement.
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