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⚡ Gear up, stand out, and never miss a beat on the trail!
The RUTU 420 17T 17mm Countershaft Engine Sprocket Drive Gear is a precision-engineered front sprocket designed for 50cc to 125cc dirt bikes, ATVs, mini bikes, and go-karts. Featuring 17 teeth and a 0.235" thickness, it fits 17mm engine countershafts and 420 chains with specific pitch and roller dimensions. Crafted from heat-treated steel for enhanced durability, it ensures reliable power transfer and long-lasting performance. This sprocket comes with a retainer plate set and is backed by a 1-year replacement warranty, making it a trusted upgrade for serious riders.
| ASIN | B07MXYG9B7 |
| Best Sellers Rank | #1,455,911 in Automotive ( See Top 100 in Automotive ) #2,235 in Powersports Sprockets |
| Brand | RUTU |
| Customer Reviews | 4.2 4.2 out of 5 stars (270) |
| Date First Available | January 19, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.6 ounces |
| Manufacturer | RUTU |
| Manufacturer Part Number | RUTUSK4201717 |
| Package Dimensions | 4.17 x 3.35 x 0.51 inches |
J**S
Tough part
Fit perfect easy replacement got my top speed up part came one day hasn’t broke and I put it through some torture
C**N
Make sure you get the right part
It was too loose on the chain, it was not the right part as the original sproket was thicker. I have a rtx 125cc scooter and the sproket that fit was 428-17t sproket.
C**A
Fits Grom clone Boom Vader 125cc 2023
Fits perfect. Chain rubs a tiny bit on the bottom of the cover. You can easily cut it. I just left it. It don’t rub a crazy amount
S**.
Fit my 110CC honda clone perfectly
Not much else to say here! The fitment was nice on the output shaft, the chain felt good on the teeth, and it was a noticeable improvement from the 14 tooth sprocket that came with the bike.
A**N
Fits perfectly on my Apollo Db-35 125cc Pitbike
I was super worried about getting another sprocket put on my Apollo because there isn't a lot of sprocket info for my bike but this sprocket fit perfectly and I was able to get my bike up to 58mph.
T**E
Not a snug fit!
This thing looks like it would bolt right on and that would be the end of it but, you would be wrong. I replaced my stock 14 tooth engine sprocket on my 2021 SSR 125 Pit Bike with this 17 tooth. Now I'm not saying that it doesn't fit, because it does. However the fit is far from snug and secure, which is what you want on a motorized vehicle, obviously. The sprocket fit on the shaft but it wobbles, ALOT. It wobbles about a mm or two in all directions, front back left and right on the shaft. Even with the retention ring bolted down as tight as it will go, there is still an awful lot of play where the sprocket touches the driveshaft.
G**N
17 tooth 17 mm front sprocket
Fit perfectly. Came with hardware! Shipped in one day.
K**W
Doesn't fit xpect
Good sprocket, however did not fit my bike.
Trustpilot
2 months ago
1 day ago