Hard Parts – Keefer, Inc. Tested

Pro Circuit HC Piston Kit (2024-2026 KX450)

Are you looking to get a little more torque out of your KX? The Pro Circuit HC Piston Kit will give you just that. The PC Piston has a 14.2:1 compression ratio and the kit comes with coated wrist pin, rings and clips. This kit requires some sort of race fuel but if you’re reading…

ByKris KeeferMarch 8, 20260Comments

Bike Brands Bolt-Ons Hard Parts Honda

Flo Motorsports 10mm Clutch Master Cylinder: Honda CRF450R

ByKris KeeferFebruary 16, 20260Comments

Bolt-Ons Hard Parts

Race Cups or Triple Clamps?

ByKris KeeferFebruary 13, 20260Comments

Bolt-Ons Hard Parts Kawasaki Performance

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

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