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HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Sylphide 90 gear ratio?
10-03-2005 02:00 PM  12 years agoPost 1
AlexV

rrApprentice

Dubai, UAE

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I there different ratios?

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10-03-2005 02:10 PM  12 years agoPost 2
Secret Squirrel

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New Zealander living​in Melbourne,​Australia

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8:1 is the stock ratio

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Simon Lockington

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10-04-2005 02:49 AM  12 years agoPost 3
Chris.C

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Hong Kong

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You can try the 7.8:1 ratio with JR's upgrade kit which includes a main gear and a pinion case.

Chris

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10-04-2005 08:28 AM  12 years agoPost 4
AlexV

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Dubai, UAE

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Do You have part # of upgrade?
Maybe 8.1 too much for ys91

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10-04-2005 08:31 AM  12 years agoPost 5
Chris.C

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Hong Kong

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JR no 61022.

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10-04-2005 08:53 AM  12 years agoPost 6
Secret Squirrel

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New Zealander living​in Melbourne,​Australia

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The YS 91 runs great in the Sylphide at 8:1 ratio. Certainly mine does.

Si

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Simon Lockington

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10-04-2005 09:32 AM  12 years agoPost 7
Chris.C

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Hong Kong

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I agree that the stock ratio is great for YS. The reason I changed it to 7.8:1 is for my OS Cspec which seems happier in lower ratio.

Chris

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02-23-2006 01:25 AM  11 years agoPost 8
Vicky

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Hong Kong

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HI Chris,

I am more happy with OS 91SZH + 7.81 gear ratio.

Vicky

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HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Sylphide 90 gear ratio?
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