JT Sprockets Steel Rear Sprocket 520 Pitch - Honda Grom, Monkey with 250/300 CBR Swaps

JT aftermarket rear sprocket for Honda Grom 125 (2014-2025) or Monkey 125 (2018-2025) with CBR 250cc or 300cc engine swaps! There's no other way to counter balance your engine power other than transmission adjustments! Affordable and easy to install rear sprocket for Honda Grom 125 and Monkey 125! This sprocket will only fit Honda Grom's  or Monkey's with CBR 250cc or 300cc engine swap running a 520 chain pitch.

These sprockets would fit directly onto the OEM Honda Grom or Monkey rear sprocket hub carriers and would accept 520 pitch chains.

• - 30T
• - 32T
• - 33T
• - 35T
• - 38T
• - 40T

NOTE: 

Some aftermarket Grom sprocket/cush hubs uses socket head cap screws, which seats perfectly into the recess channel. If you're keeping the OEM sprocket carrier hub and the OEM studs, then OEM 8mm size nuts would sit inside of the of the step, however if you're using a 8mm flanged nut (aftermarket), then you would need a 8mm flat washer. The OEM 10mm and aftermarket 10mm size nut would need a washer, you may use 10mm crush washers (banjo bolt washers works) or similar size washers. Please see product photos for additional information. These washers are NOT included.