420 Gear Reduction - Honda ATV Forum
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post #1 of 10 (permalink) Old 01-08-2014, 08:50 AM Thread Starter
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420 Gear Reduction

After searching on here for about an hour I give up. Is there any type of write up on the process it takes to a gear reduction? I found quite a bit on the AT's but not much the SRA models like mine. I have 28" Mega Mayhems on mine and in first gear it doesn't do bad in normal mud but anything thick or deep it really just hates it. What % to do and WHERE to get it or WHO to buy it from?? Thanks.

2012 ES SRA 420 Rancher
-28" Mega Mayhem's
-14" HD2se's
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post #2 of 10 (permalink) Old 01-08-2014, 01:14 PM
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Any gear reduction bigger than the SRA reduction for an AT should work in yours it just won't be as much of a reduction from stock. I think HL sells a reduction for it.

2012 Rancher AT-MSA Nukes w/ 28 Zillas, 2" Lift, 3k winch, Custom Stereo, Ammo Cans for storage, Cold Shrink Cable sleeve for grips
2007 400ex-SS112 sport w/ GNCC holeshots, Trinity full exhaust, Pro Armor rear skid, nerfs, and front bumper
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post #3 of 10 (permalink) Old 01-08-2014, 01:42 PM
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I would check with GotMuddy on the Highlifter Forum. He makes gear reductions for just about everything.
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post #4 of 10 (permalink) Old 01-08-2014, 07:11 PM Thread Starter
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I was wanting to know what it all involved. Not super detailed but just a little deeper information.

2012 ES SRA 420 Rancher
-28" Mega Mayhem's
-14" HD2se's
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post #5 of 10 (permalink) Old 01-08-2014, 07:33 PM
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You pull the rear case off, change the primary and secondary drive gears, replace the rear case, then shave the speed sensor down so it drops farther into the case so it will shift right. The most basic description I can give.

2012 Rancher AT-MSA Nukes w/ 28 Zillas, 2" Lift, 3k winch, Custom Stereo, Ammo Cans for storage, Cold Shrink Cable sleeve for grips
2007 400ex-SS112 sport w/ GNCC holeshots, Trinity full exhaust, Pro Armor rear skid, nerfs, and front bumper
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post #6 of 10 (permalink) Old 01-10-2014, 07:01 PM Thread Starter
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Thanks! I think this would be better than buying exhuast,filter and programmer.

2012 ES SRA 420 Rancher
-28" Mega Mayhem's
-14" HD2se's
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post #7 of 10 (permalink) Old 01-12-2014, 01:33 PM
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Honda 420 secondary gear reduction install info

2011 rancher at
2" high lifter lift
High lifter springs
K&N and pre filter
Hmf penland pro
Pcv
28 in s/w zillas
Extreme gear reduction (32%)
Epi comp clutch kit
Full 2in snorkel
Rad rack
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post #8 of 10 (permalink) Old 01-12-2014, 06:55 PM Thread Starter
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That explains it very well! Thanks for sharing that!

2012 ES SRA 420 Rancher
-28" Mega Mayhem's
-14" HD2se's
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post #9 of 10 (permalink) Old 01-21-2014, 09:44 PM
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Hey what's up guys! I just joined this forum and also just purchased a 2013 rancher 420 4x4. I'm excited about both. I'm wanting to learn the most beneficial accessories to help open it up and gain a little power. Also I want to make it as bright as possible at night time. I've seen a few exhausts out there. Didn't know if I needed to tune or anytning else after installing one. Any helpful tips or suggestions would be much appreciated.
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post #10 of 10 (permalink) Old 01-22-2014, 08:11 PM
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If ur just doining a pipe u shouldmt need a programmer but every bike is different if ur just wanting a little more power and don't want knock ur speed down I would go with the 14.5 % gr but if ur wanting all out mud then the 35% as far as lights the only aftermarket hids r made by eagel eye

2011 rancher at
2" high lifter lift
High lifter springs
K&N and pre filter
Hmf penland pro
Pcv
28 in s/w zillas
Extreme gear reduction (32%)
Epi comp clutch kit
Full 2in snorkel
Rad rack
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