Grubee GT 1 Sprocket

bdial · Sep 30, 2011

I'm told I need to change my 44 tooth sprocket on my GT1 bicycle to a 60 tooth sprocket. Will any 6 bolt-hole sprocket fit my GT1? Do the "manic mechanic" sprockets fit the GT1? I'm appreciative of any help.

bdial · Jan 28, 2012

Kind of desperate. Trying to get bike ready for spring. The only vendor I can find for Grubee sprockets is Terry Blow and he's out of business for now. Does anyone have a referral for a 56 tooth, 6 bolt sprocket that fits the Grubee HD axel? I'd be grateful. If anyone has such a sprocket for sale personally, I'd like to hear of that also.

MotorBicycleRacing · Jan 28, 2012

Bicycle Engines sells the 6 hole 56 tooth sprocket
http://www.bicycle-engines.com/freewheel-sprocket-axle-p-303.html

What motor and gearbox are you using?

Cavi Mike · Jan 28, 2012

60tooth is pretty extreme, you'd have to have a VERY small engine that revs extremely high(like one of those race 30.5cc engines) to warrant a sprocket that large. I think a 56t is as large as you'd need to go for anything.

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Grubee GT 1 Sprocket

bdial

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bdial

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MotorBicycleRacing

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Cavi Mike

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