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
Condition: New
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Availability:
In Stock.
Arrives
Wednesday, Aug 6
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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: 12.57 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:
Wednesday, Aug 6
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.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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.
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Reviewed in the United States on June 17, 2025 by Rodney Ward Rodney Ward
Highly recommend
Reviewed in the United States on July 1, 2025 by Dave J.
I watched a dozen youtube videos it helped me understand the concept. First thing is that the shaft is over 5/8 I had to wallow out the pulley with a drill bit and for some reason the keyway wouldn't fit my pulley but I used one I had. this project took some fabrication and welding but if you are mechanicly inclined it is doable.
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Reviewed in the United States on February 2, 2025 by Kindle Customer Kindle Customer
Looks good all the parts pictured are included be sure to check for lubricants my unit is brand new and completely dry. No instructions so if you are not familiar with this assembly YouTube will be your only option for guidance. This unit is for a smaller low horsepower cart/project so don’t expect it to last under a 420 predator build. I am using it on an 8hp cart I will update as soon as possible.
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Reviewed in the United States on June 30, 2025 by Martin Rodriguez
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.
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Reviewed in the United States on March 22, 2023 by SanmIAm
The media could not be loaded. I'll give it a five only because I just tested it for the first time spins my tires forward and backwards. It never did that before as far as durability we'll see how it goes. I rode it around the block once or twice. I'll let you know later trust me.
Reviewed in the United States on March 2, 2025 by Tal
Very cheaply made. Gear box has half a rotation of play in primary shaft before secondary engages. Frame is cheap cast, shafts are oblong shaped and required machining to get clutch to fit and not wobble around. Is not in any case good quality
Reviewed in the United States on April 25, 2025 by Farmer mike
The media could not be loaded. UPDATE: This thing works great!! And has handled everything I’ve thrown at it!!! Really makes my big go kart so nice. Having forward and reverse is a life saver in many situations and loading it into the back of my truck! Let’s see how long this lasts before I have to purchase a new one! Stock predator 420cc (13hp) setup.. had to make a way for the thing to fit my go kart and work with a DID 420D chain and 40 series torque converter🤣 here’s what I came up with!!
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Reviewed in the United States on January 30, 2021 by DR1FTEN DR1FTEN