Bolt-Ons – Keefer, Inc. Tested

Pro Circuit Ti-6 Muffler For 2027 Kawasaki KX250F

Kawasaki doesn't have an all new KX250F for 2027 but we got out hands on aPro Circuit Ti-6 recently so why not bolt it up and see what it does the to the green machine's engine character. We have put time on the stock KX250F and then bolted up the Ti-6 to see what the…

ByKris Keefer3 days ago0Comments

Bolt-Ons Hard Parts KTM Suspension

Project KTM 450SX-F Stage One Video

ByKris KeeferAugust 23, 20260Comments

Bike Brands Bolt-Ons Gasgas Hard Parts Honda Kawasaki KTM Suzuki Triumph Yamaha

2026 250/450 MX Gearing Guide

I have spent a lot of time testing on the 2026 MX machines you see below. I (as well as a couple other members of our team) have went back and forth on several bikes to see which gearing would be good for the average rider. I did the evaluations on tight clay based tracks…

ByKris KeeferMay 1, 20260Comments

Bolt-Ons Hard Parts Yamaha

Rekluse APEX Clutch System Review: 2024-2026 Kawasaki KX450

We have been going full bore on trying different KX450 clutches and the next in line was Rekluse’s APEX system. This is the first time I have tried the Rekluse APEX system and came away pretty damn impressed! The Rekluse APEX clutch system is a clutch upgrade for the Kawasaki KX450 and after spending time…

ByKris KeeferFebruary 11, 20260Comments

Bike Brands Bolt-Ons Hard Parts Kawasaki

Hinson Racing Small Diameter Clutch For 2024-2026 KX450

If you have a 2024-2026 Kawasaki KX450 you already know the clutch isn’t that great. It fades during minimal abuse and the lever engagement also can change while you’re riding, not to mention that after only several hours, it can start slipping. I have been on the hunt for something with better engagement when riding,…

ByKris KeeferFebruary 3, 20260Comments