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Old 05-04-2017, 11:41 AM   #1
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Default HB Pro5 Gearing for 17.5

Hello,

What is a good starting point for the gearing on a pro5 running 17.5? Based on the manual, they recommend a middle of the road starting point of 116/35 which seem like mod numbers to me. Of the setup sheets I could find for 17.5 and 13.5 the numbers I found were 90/58, 96/47, and 99/44.

Follow up, if the recommendation is for something in the 90 range on the spur, what company makes spurs that fit the HB? Can't find an HB in that range. Would like to stick with 64 pitch.

Thank you much!
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Old 05-04-2017, 05:01 PM   #2
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Gearing will be track and motor dependent. A middle ground would be 4.0 FDR. A 96t spur works well for 17.5. Panaracer, Kawada, Arrowmax make spurs that fit. Kimbrough gears work in a pinch too.
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Old 05-05-2017, 10:11 AM   #3
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Awesome, thank you!
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