









โก Shift Your Ride Into Overdrive with Waverspeed Power!
The Waverspeed Go Kart Forward Reverse Gearbox is a robust, metal-constructed gearbox designed for 2HP to 13HP 4-stroke engines. It features a 3-mode shifting system (forward, reverse, neutral), dual sprockets for #35 and #40/41/420 chains, and comes pre-filled with GL-5 gear oil. This kit includes all necessary mounting hardware and shifter components, making it an essential upgrade for go-kart and utility vehicle enthusiasts seeking reliable, versatile performance.










| Manufacturer | Waverspeed |
| Brand | maXpeedingrods |
| Product Dimensions | 20 x 20 x 20 cm; 5.7 kg |
| Item model number | YW65 |
| Manufacturer Part Number | YW65 |
| Material | metal |
| Size | medium |
| Assembly Required | No |
| Manufacturer | Waverspeed |
| Item Weight | 5 kg 700 g |
R**D
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.
S**.
Well built gear box
So far gear box preforms well... It's built durable ..I use it for extensively modifyed atv with industrial engine to do snow plowing with currently relentless winter.
A**A
High quality item
This worked great for our custom go kart.
G**I
Works perfect cuz as I wish
It's a nice reverse kit love it
D**.
looks ok but needs beefing up or add end bearing [read explanation] 5/8 input is NOT 5/8 [larger]
i think the gearbox will be ok but it needs to be helped!!!! people removing TC back plate---bad for gearbox!!! too much long torque stress on the end of the input shaft--- this makes the white metal housing take all the grunt---we all know about white metal dont we!? secondly the tc backplate keeps the 2 pullies the right distance apart taking the linear [pulling on the belt] torque from the engine. 3 if you dont use a tc then put a pillow block on the end of the input shaft--again taking the torque OFF OF the gearbox housing. shifter wheel bad casting!! MINE came almost empty of any oil----hope your all filling it up b4 use. hope this helps the blowups/life increase for sure i will give it a 3of 5 untill proven 5 if it lasts with this help i will get pictures soon for a 4 track snow sled puller 13 horse honda replica engine
Trustpilot
1 week ago
5 days ago