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Workshop => Engine and Bottom End => Topic started by: Sand_Blaster on October 14, 2017, 06:55:16 PM

Title: Gearing help
Post by: Sand_Blaster on October 14, 2017, 06:55:16 PM

Hey. What gearing should I try for 22" 10 paddle haulers?
I'm looking at roughly 55-60hp and 4" extended swing arm. I wan't to be able to launch in second gear still.. should I stick with stock gearing?
Thanks

Title: Re: Gearing help
Post by: hickwheeler on October 14, 2017, 07:21:59 PM

You will need probably a 42 out back. With 13-40 I was not able to launch in 2nd. With 22 8 paddle

Title: Re: Gearing help
Post by: jwraymond6 on October 14, 2017, 07:27:22 PM

I run a 13/38 with 22" 8 blade paddles with my motor around 65hp mine bogged launching in 2nd ask Loren I believe his launches in 2nd pretty good

Title: Re: Gearing help
Post by: Sand_Blaster on October 14, 2017, 09:23:12 PM

Well that's no good. I'd prefer to launch in second for sure.

Title: Re: Gearing help
Post by: broken1 on October 14, 2017, 10:01:57 PM

Since your on the lighter side stock gearing would probably be fine for you to launch in 2nd. I weigh about the same as you & always come out of the hole in 2nd with stock gearing. I run a 20" 8 paddle hauler but have probably 15-20hp less then you do so it should be close to the same.

Title: Re: Gearing help
Post by: The norm on October 15, 2017, 01:27:31 AM

13-42 gearing on my bike and I launch in second no prob. My swinger is a +3 and my tires are 21-12-8 9 paddle. The 42 is actually a rear sprocket from a 400ex.

Title: Re: Gearing help
Post by: Sand_Blaster on October 15, 2017, 01:53:39 PM

Sweet thanks. I'll try that gearing, thanks Loren.

Title: Re: Gearing help
Post by: jwraymond6 on October 16, 2017, 11:44:16 AM

Here's a sprocket gear ratio chart that might help you

http://www.jtsprockets.com/fileadmin/files/jtgearratio.pdf

Title: Re: Gearing help
Post by: Sand_Blaster on October 16, 2017, 12:21:04 PM

Thanks Jeremy I'll use that chart. Where do you get your sprockets from ?
Rocky Mountain atv only has 38/39 nothing more.

Title: Re: Gearing help
Post by: jwraymond6 on October 16, 2017, 12:28:32 PM

Quote from: Sand_Blaster on October 16, 2017, 12:21:04 PM

Thanks Jeremy I'll use that chart. Where do you get your sprockets from ?
Rocky Mountain atv only has 38/39 nothing more.

Rocky Mountain usually

Title: Re: Gearing help
Post by: jwraymond6 on October 16, 2017, 12:31:25 PM

Quote from: jwraymond6 on October 16, 2017, 12:28:32 PM

Quote from: Sand_Blaster on October 16, 2017, 12:21:04 PM

Thanks Jeremy I'll use that chart. Where do you get your sprockets from ?
Rocky Mountain atv only has 38/39 nothing more.

Rocky Mountain usually

Pretty I've gotten a 40t from them before

Title: Re: Gearing help
Post by: jwraymond6 on October 16, 2017, 01:35:26 PM

I have a 45t rear if you wanna try it

Title: Re: Gearing help
Post by: jwraymond6 on October 16, 2017, 04:40:04 PM

I found these on eBay but there aluminum I don't think they hold up as well

https://m.ebay.com/itm/132303425361

Title: Re: Gearing help
Post by: Sand_Blaster on October 16, 2017, 04:47:21 PM

Hmmm those are interesting. I may have to try one, my renthal aluminum has held up well so far.

Title: Re: Gearing help
Post by: The norm on October 16, 2017, 09:48:49 PM

You have to order the 42T for a 400ex