JT Sprockets JTR212.37 37 Tooth Steel Rear Sprocket, Single

fit and works fine for replacing an old worn out sprocket.

I ordered front (14t) and rear (37t) sprockets for my Grom, both from JT and I can tell you that it made a huge difference and I absolutely love them. I have GPS confirmed top speed of 60 mph with this fairly aggressive gearing and it rips! It is way more fun than stock at a slight loss of top speed. The sprockets are very well made and got to me in one day. I won’t hesitate to buy from JT again!

Fits my 2017 Grom first picture is actual sprocket I don’t know why they have the other sprockets on there

Fits perfect on my 2017 Grom. Currently running 14/37 in Colorado and it is perfect for 2nd gear sit downs. Looks good and functions property.

Quick install on the from. I have a 14t in front -1 from the stock 15t and this 37t in rear. For every tooth down in front its like 3 up in rear so easent its 40t I think. I would recommend if your just using the grom for stunting or wheelies to get a 40t and up size sprocket. Makes it super easy to clutch up since the grom is weak and underpowered. Get some 60% springs and stronger clutch plate to go with this. You'll be set!

Great cheap($$$ not quality) steel sprocket. Fit, works. Good stuff

It fit my 2019 grom and functions as expected at first. It is the correct size and tooth HOWEVER… I have put on about 600 miles half of that wheelies and it is already worn a u shape in the sprocket as you can see. Just enough for the chain to catch when rolling backward. Ver weak material. You get what you pay for.

The quality of the sprocket is really good and holds up well. The problem is there is no specification for what generation or years of the Honda Grom at this pocket will fit on if ordering for a 2022 or newer you will have to drill out the four holes approximately one to three sizes larger than it is stock from the factory.

Absolutely brilliant fits a 2017 gromAbsolutely fantastic price for what it is!Would buy again in the future!