Charged RTX
Expert
does anyone know what % the sheave increases overall gearing? I want to gear down to keep about the same top end potential.
snowbeast
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I think its 5% but not sure,but it does help a little.Charged RTX said:
rxrider
Jan-Ove Pedersen
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If you install both the speed sheave and an aftermarket helix which is machined for higher clutch ratio you can achive the same theoretical top speed at approx 21-22/38. Highest stock clutch ratio is 0.97:1. Highest stock clutch ratio whit speed sheave and machined helix is 0.84:1
PS! This may vary depending on centre to centre distance between primary and secondary clutces and the condition of your clutch belt.
PS! This may vary depending on centre to centre distance between primary and secondary clutces and the condition of your clutch belt.
Charged RTX
Expert
Wow that is about 13% I am surprised it makes that much difference. I have a Super torquer secondary setup that shifts out more than the stock setup. Looks like you could go down to a 21 on top and still not lose any top end. Did you get that info from Hauck.
rxrider
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No info from Hauck. I have measured how high belt can go in primary and how low it can go in secondary, then with some math I got the figures. With the stock primary sheaves the belt can not shift out all the way up in the primary, it will stop 7 mm below the outer edge. Beeing able to shift out the last 7 mm will make a significant difference in top speed if you have the power and/or clutching to do so. Another way of using this overdrive is what you are asking; gearing down for better holeshot without loss of top end speed. It works if you have traction to take advantage of the encreased torque to the ground.
