Hard Parts – Keefer, Inc. Tested

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

Bike Brands Bolt-Ons Exhaust Hard Parts Kawasaki Performance

Yoshimura RS-12 Stainless Full System Review

We all know Kawasaki left a lot of room for improvement on the muffler side of things on the Kawasaki KX450. We have tried a number of mufflers to help increase the low end torque and have been happy with a couple. The latest muffler we tested was the new Yoshimura RS-12 stainless full exhaust…

ByKris KeeferJanuary 10, 20260Comments

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

2026 Optional Renthal Handlebar Bends For Your Bike/Size

We are back for 2026. Going all geeked out and detailed on bar specs! When it comes to handlebars, I am a picky SOB. Oh and I am still am a big pain in the butt with a rider triangle. The height, width, rise, and position is very important to me between each bike that…

ByKris KeeferDecember 10, 20250Comments

Bike Brands Bolt-Ons Hard Parts KTM Performance

Project KTM 350 SX-F: Dual Injector Set Up/Install

ByKris KeeferDecember 1, 20250Comments

Bike Brands Bolt-Ons Exhaust Hard Parts Kawasaki Performance Suspension

Kawasaki KX450 Mods That You Can Feel

ByKris KeeferNovember 30, 20250Comments

Bike Brands Exhaust Hard Parts Kawasaki Performance

Review: Pro Circuit Ti-6 Pro “BC” (2024-2026 KX450)

It’s not rocket science that the 2024-2026 Kawasaki KX450 mufflers are plugged up! There is a ton of room for improvement with the engine character with just a slip on. “Kris, it’s a 450, how much power do we actually need”? You would be right, but also there is a fine line of too slow…

ByKris KeeferNovember 25, 20250Comments

Bike Brands Performance Yamaha

2026 Yamaha YZ450F Optional Yamaha Power Tuner Map

If you had a 2024-2025 Yamaha YZ450F and then purchased a new 2026 YZ450F you may notice a little more engine braking with the new '26 bLU cRU machine. For me, it made the new Yamaha difficult to roll corners as it upset the chassis at times (once the suspension was broken in). Relaxing the…

ByKris KeeferNovember 20, 20250Comments

Bolt-Ons Exhaust Hard Parts Honda Performance

Tested: Yoshimura RS-12 Full Titanium System

I mean if you have a Honda CRF450R, it’s almost illegal NOT to run a Yoshimura. No, but seriously, Yoshimura does make one of the best looking Honda mufflers in existence. Yoshimura quality is also second to none and when you bolt on a Yoshimura, you know it’s not going to be a nightmare. We…

ByKris KeeferNovember 19, 20250Comments

Bike Brands Bolt-Ons Hard Parts Yamaha

Yamaha YZ450F Flywheel Weights Tested

Optional Yamaha YZ450F Flywheel Weights Tested

ByKris KeeferNovember 17, 20250Comments

Bolt-Ons Hard Parts Motocross Performance

Ride Engineering Pulse Replacement Rotor

If you’re looking for a 270mm replacement rotor for your Yamaha or Kawasaki or if you want to go oversize on your Honda, KTM, Triumph, Beta, Gas Gas or Husqvarna, Ride Engineering has an inexpensive option for you. Ride Engineering's Pulse Rotor kits are 10mm larger than stock and made from a special grade stainless/iron…

ByKris KeeferNovember 11, 20250Comments