🖤 Black Steel Front Sprocket - JT Sprockets JTF249.14 - 14 Tooth / 420 Pitch Review

Installed on MY 2015 A complete game changer. I weigh 230 pounds, camp up to 62 mph downhill, fully built. With that 13t sprocket he runs 60-64 just under the red line with no problems. Each gait seems more alert and the fourth no longer looks dormant. The best mod you can make at the lowest price!

I can tell you this will NOT fit my 2019 Grom. The sprocket ID is fine, but there is not enough play for the teeth on the shaft. I contacted JT Sprockets and they confirmed this part should work but the one I received did not fit my bike. The JT252 is said to be oversized for a 2019 Grom shaft but fits mine perfectly (no play). So either two different parts are manufactured incorrectly (unlikely) or there is at least a 2019 Grom (mine) with larger gears on the shaft than expected.

Bought both the 13 and 14 tooth to try out my 2019 Grom, having already added a full Yoshi exhaust and Dynojet tuner which were great upgrades but so good like nothing worked when it came to top parts, especially since I'm a bigger guy for grom 5-10, 260lbs. I then bought sprockets aimed primarily at improving the bottom end for pit bike shenanigans and I tried out the 14 tooth with excellent performance throughout the gear range and actually got about 5 mph more than normal on the top end…

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…