Kris Keefer – Keefer, Inc. Tested

Tested: VP RX96 Race Fuel

If you’re currently looking for a good pump replacement fuel (instead of T4+) RX96 is a fuel I stumbled upon that has a lot of the great performance features of T4+. VP RX96 fuel is an unleaded, oxygenated off-road racing fuel designed applications that can run low octane fuel. With the fuel’s unique chemical properties,…

ByKris Keefer2 days ago0Comments

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 Keefer3 days ago0Comments

Keefer Tested Podcasts

RMATVMC Keefer Tested Show #457: Vet Masters MX Re-Cap From Echeconnee

http://media.blubrry.com/keefer_tested/pulpmx.com/podcasts/251118_keefer.mp3 Heather and Kris Keefer sit down to talk about the Vet Masters weekend from Echeconnee. If you weren't there for this epic weekend, listen to this show and it will be like you were there. The Keefers ring up Randy Richardson to cover how the race was ran, the track, who was fast, who absolutely…

ByKris Keefer4 days ago0Comments

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

Keefer Tested Podcasts Triumph

RMATVMC Keefer Tested Show #456: 2026 Triumph TF 450-X Review

http://media.blubrry.com/keefer_tested/pulpmx.com/podcasts/251112_keefer.mp3 The 2026 Triumph TF 450-X does have some small updates so in this episode we go over those changes as well as talk about where this bike shines and where it needs some help. With one of the best chassis in class, this British machine could be a weapon for someone looking to have a…

ByKris KeeferNovember 17, 20250Comments

Bike Brands Yamaha

2026 Yamaha YZ450F Vet Masters Race Build

ByKris KeeferNovember 14, 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

Keefer Tested Podcasts

RMATVMC Keefer Tested Show #455: Honda CRF450R Dream Build and Endurocross Talk w/Cody Webb

http://media.blubrry.com/keefer_tested/pulpmx.com/podcasts/251110_keefer.mp3 In this mash up show we discuss our latest Honda CRF450R build with Eddie Laret and also get Cody Webb on the phone to talk about his Endurocross series as well as his Yamaha YZ250F big bore race machine

ByKris KeeferNovember 11, 20250Comments