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1278 Review
34 Karma

Review on πŸ–€ Black Steel Front Sprocket - JT Sprockets JTF249.14 - 14 Tooth / 420 Pitch by Mario Beaklini

Revainrating 5 out of 5

Works great on my 2022 Honda Grom

Revain says it won't work on a 2022 Honda Grom but it fits mine perfectly. I should add though that I also have a 31t rear sprocket (as opposed to the 38t stock 2022 model) so a 13t front with a 31t rear (2.3846) gives me a bit higher top speed than 15-ton / 38-ton (2.5333). bearing installation. But because I reduced the radius and mass of the rear sprocket and shortened my chain by 4 links, this reduced the overall rotational mass of the drivetrain and provided the wheels with torque/force for acceleration that was previously wasted by simply revving up the drivetrain. . It's not much, but at least something. That being said, some bikes can return 0.5-1hp at times, and the Honda Grom only has 9hp. on a good day, which is a 5-10% increase. πŸ€·β€β™‚οΈ It definitely saves gas. But I highly recommend this trail. Even if you want to stick with the stock ratio you can still run 13t/33t (2.5384), which reduces overall rotational mass to bring back some of what was previously lost. However, this is a transfer. As long as it fits properly and is made from a high quality alloy, what more could you ask for?

Pros
  • cool product
Cons
  • I vaguely remember