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Thread: TRX-4 vs SCX10 gearing help.

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Old 02-28-2019, 11:28 AM   #1
Rock Crawler
 
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Default TRX-4 vs SCX10 gearing help.

I've forever ran a 56t spur / 10t pinion on my SCX10's. I'm working on a new TRX-4 build and would like to run whatever is comparable? I have a single speed TRX-4.

What size spur and pinion should I run that would give me the same speed?

Thank you in advance.
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Old 02-28-2019, 11:35 AM   #2
I wanna be Dave
 
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Default Re: TRX-4 vs SCX10 gearing help.

SCX10 or SCX10II?

56/10 on a SCX10 would be about 42.5:1 which would be between a 16T and 17T pinion with the 45T spur and a single speed on a TRX4.

56/10 on a SCX10II would be about 54.6:1 which would be a 13T pinion with the 45T spur and a single speed on a TRX4.
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Old 02-28-2019, 11:38 AM   #3
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Default Re: TRX-4 vs SCX10 gearing help.

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Originally Posted by svt923 View Post
SCX10 or SCX10II?

56/10 on a SCX10 would be about 42.5:1 which would be between a 16T and 17T pinion with the 45T spur and a single speed on a TRX4.

56/10 on a SCX10II would be about 54.6:1 which would be a 13T pinion with the 45T spur and a single speed on a TRX4.
I'm not sure. I've ran a Toyzuki V2 for the last two years. So I'd say SCX10 II.

I'll grab a set of pinions and a 45T spur. Thank you!
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Old 02-28-2019, 11:52 AM   #4
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Default Re: TRX-4 vs SCX10 gearing help.

I'm running 13/45 on my Sport with stock motor and 1080esc. Great crawling set up. Decent trail speed - fast walking pace.
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Old 02-28-2019, 11:52 AM   #5
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Default Re: TRX-4 vs SCX10 gearing help.

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Originally Posted by GTSLOW View Post
I'm not sure. I've ran a Toyzuki V2 for the last two years. So I'd say SCX10 II.

I'll grab a set of pinions and a 45T spur. Thank you!
Likely a SCX10II then, 45/13 would be a near identical ratio for the TRX4.

The 45T spur is the stock one for all models but the Sport so you likely have the right spur if you have a TRX4 trans.
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Old 02-28-2019, 12:55 PM   #6
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Default Re: TRX-4 vs SCX10 gearing help.

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Originally Posted by mewalsh100 View Post
I'm running 13/45 on my Sport with stock motor and 1080esc. Great crawling set up. Decent trail speed - fast walking pace.
Mind sharing what turn motor you run?

Thanks.
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Old 02-28-2019, 12:55 PM   #7
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Default Re: TRX-4 vs SCX10 gearing help.

Quote:
Originally Posted by svt923 View Post
Likely a SCX10II then, 45/13 would be a near identical ratio for the TRX4.

The 45T spur is the stock one for all models but the Sport so you likely have the right spur if you have a TRX4 trans.
That's correct. Mine was TRX-4 Tactical edition and I've since converted to a single speed.
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Old 03-01-2019, 06:29 AM   #8
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Default Re: TRX-4 vs SCX10 gearing help.

The Sport manual has all the gear ratios and FDR's on page 27....since it has the single speed, should have all the info you need. Basically (spur/pinion)*15.8 ...Comes in handy...

https://traxxas.com/sites/default/fi...-OM-EN-R00.pdf
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