JT Sprockets JTR212.37 37 Tooth Steel Rear Sprocket

I ordered one of these JT sprockets, 37T for my Honda Grom back in 2018, had the part number printed on it but it was plain steal, lasted me 6000 miles before it needed replacing. Ordered a new one, same item description, received a nicer black steel version with JT stamped unlike my original. The newer one looks better quality and original from JT. If you get the solid black steel with JT stamps, send it!

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

For 2024grom you’ll have to drill the hose bigger. I don’t feel much difference but that just me

Fits like a charm. Only thing is that it came in black instead of being the shiny silver, but cannot complain perfect

Works well on a 4 speed Grom to get you up to speed faster.

Does not fit a 2025 grom..holes are too small

37 tooth as said but the photo is chrome and it came in black

I installed this on my Grom taking off my stock sprocket. It makes the wheelies so much easier. It bolts on exactly the same as OEM. Just be sure to not only torque it but use a start pattern as well.