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maXpeedingrods Go Kart Forward Reverse Gearbox Kit 212cc for 2HP-13HP Engine 4 Stroke Only Works with 30 Series Torque Converter 3 Shift Modes #35 Chain Go Karts Accessories Go Kart Transmission

  • Based on 273 reviews
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Availability: In Stock.
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Arrives Thursday, Mar 12
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Features

  • Gearbox Kit 30 Series -This forward reverse gearbox is suitable for go-karts,utility vehicles and other applications with engines up to 14HP and # 35 chain 12T and #40/41/420 chain 10T (Both sprockets included).Please note only use on 30 Series
  • Standard Adaptation Parameters-Shaft Size: 5/8" with 3/16" keyway; Gearbox Speed: 5/13 of the Clutch speed; Shifter Cable Length: 1540mm ( 5' ) ( 60'' ).Forward Ratio: 1:1:3,Reverse Ratio: 1:2:6
  • Complete Accessories-1x Forward / Reverse Gearbox with 3/16" Keyway;2x Mounting Plates;1x Shifter Disc;2x Shifter Cable;1x 10T and 12T Sprocket;1x Shifter Assembly
  • Product Use-This product was filled with oil before leaving the factory,when the oil is used up,it needs to be filled to half of the box,and this go-kart gearbox is use GL-5 gear oil
  • Three Shift Modes-This kit has three shift models: forward,reverse and neutral,which is for more convenient and easy operation.Made of high-quality metal,features with durable and lightweight for a long use life.Please contact us if you have any questions

Manufacturer: ‎Waverspeed


Brand: ‎maXpeedingrods


Item Weight: ‎12.23 pounds


Product Dimensions: ‎7.87 x 7.87 x 7.87 inches


Item model number: ‎YW65


Manufacturer Part Number: ‎YW65


Date First Available: January 3, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

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Top Amazon Reviews


  • Nut
Trans working good so far, only complaint is the nut they sent did not thread on, had to make a trip to hardware store 16mm 1.50 pitch
Reviewed in the United States on September 15, 2025 by Nathan

  • So far so good.
No instructions but I was going off the reservation anyway, it needed a bearing on the end of the 5/8 input shaft, too much torque. I'm using it on my golf cart, electric to gas conversion with a 17.5hp motor, switched everything to 40 pitch chain, shifts good so far, I mounted it with the shifter on top, its puking gear oil because its over filled but im sure that will figure its self out eventually. ... show more
Reviewed in the United States on June 17, 2025 by Rodney Ward Rodney Ward

  • Welp. Its on there.
Device seems to function so far. Zero instructions provided. Would recommend but prepare to stare at your machine for a couple hours to figure it out
Reviewed in the United States on February 27, 2026 by Adam

  • 👍
Very good quality 10/10
Reviewed in the United States on February 5, 2026 by Yasmani

  • Works, but save your sanity and get an mounting kit!
Not for novice installation. Must have metal fabrication skills, tools, and be good at using them to figure out how to install this.....or buy the mounting kit for the engine, torque converter, and gearbox to save time and headaches. Some kind of instructions would have been nice, but it does work well after you figure everything out for yourself. ... show more
Reviewed in the United States on August 30, 2025 by Sparksacoustic

  • Works.......and it's awesome
Like many others here, installed on a Coleman KT196. If you have any familiarity with a welder it is pretty straightforward to install. Took about 3-4 hours with a good deal of that dedicated to explaining what I was doing to a 6yr old. If I get motivated I will update with pictures, but basically the below sums it up: 1) Remove existing clutch and driven pully from Kart. Cut rear protector bar off 2) Remove spacer ring from driven pully housing (silver, drivers side). Place on drive shaft next to existing brass spacer bushing 3) use two 3" long section of angle iron (of appropriate thickness). Drill hole for 8mm bolt towards back top of each (for mounting of transmission). I bought a longer bolt (120mm) and used a 1" spacer between the trans mount (lower bolt hole) and the passenger side piece of angle. This allowed for a better position in welding to the existing motor mount structure. 4) Align drive sprocket with trans sprocket. Tack into place 5) Attached upper adjustment saddle (the gold "U" with a threaded rod sticking out. 6) Place a sleeve over this rod and, one aligned, weld to the top of the sleeve that previously held the driven pully shaft removed in step 1. You will need a longer bolt to re-attach the pully later (can get at hardware store) 7) Confirm chain length with new section of #40 roller chain. Adjust tack positions as required for adequate fit 8) Weld everything in place. The center distance between the drive and clutch shafts should be around 10 3/4" 9) Use belt 203597A (longer than factory). Attach chain/pullies/belt 10) Use some sort of "L" bracket to secure shifter in appropriate position being sure to attach cables to it before install 11) run cables back to trans, attach, make final adjustments. 12) (optional) weld rear protector bar back on as you please. This makes lifting the rear of the kart soooooo much easier. Can be a first-time fab project, but it will take awhile. Pretty straight forward if you have ever had to adapt two things together on a motorized vehicle that were never intended for such. Makes the kart noticeably faster. Took all of five minutes for above noted 6yr old to test it out after running full speed into a tree. ... show more
Reviewed in the United States on March 22, 2023 by SanmIAm

  • Good
Works great
Reviewed in the United States on October 1, 2025 by Megalina Sanchez

  • Did not fit as listed.
It was my last hope. I've ordered cables, shift handles several times. each time they did not work.So I ordered a complete kit/ assembly thinking what can go wrong?! Took the kart to an ATV repair shop. I was not surprised when they called and said that it did not fit nor could they find anywhere on the internet any instructions. I tried and they attempted to contact the seller. NO RESPONSE! Found out today that number on invoice is no good. So I now have a kart that only goes in forward gear. To rub sand into my wound, I had to pay $24.38 to ship it back. It arrived and handed to seller 6/14. still waiting my refund. ... show more
Reviewed in the United States on June 23, 2022 by Cajunblackfoot

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