Bike Brands

2025 KTM 350 XC-F Review

Written By: Gardner Tarlow The Church Of 350 Is Alive And Well!! Why is it that the Austrian manufacturers are the only ones producing a 350cc motorcross and enduro bikes? In a sport dominated by vet plus riders on the track and trail, why wouldn’t more manufacturers provide a more balanced, rideable bike for the vet…

ByKris Keefer2 days ago0Comments

Bike Brands Kawasaki

2025 Kawasaki KX450 Garage Build

ByKris KeeferNovember 16, 20240Comments

Bike Brands

2025 Triumph TF 450 RC Edition First Laps

ByKris KeeferNovember 12, 20240Comments

Bolt-Ons Hard Parts Yamaha

YZ 250/450F Brembo Brake Mod (Re-Visit)

So are you tired of that spongey feeling stock Yamaha brake? Since I get to ride all the bikes, I would have to say that the Brembo system is one of the best feeling brakes out of all the MX machines. However, a little mix and matching can get you a more linear feel than…

ByKris KeeferNovember 11, 20240Comments

Bike Brands Yamaha

2025 Yamaha YZ250F World Vet Race Test

It has been about a year since I raced motocross when I heard rumblings of Matthes and Keefer racing the Glen Helen Vet Nationals in early November. If you know Kris, it only takes about one phone call that can involve some verbal motivation and next thing I knew I was on the Glen Helen…

ByKris KeeferNovember 10, 20240Comments

Bike Brands Hard Parts Performance Yamaha

Optional 2025 Yamaha YZ250F ECU Map

If you're looking for a little more low end and increased mid range recovery, this "RESPONSE" map will help in those areas.

ByKris KeeferNovember 7, 20240Comments

Bike Brands Yamaha

Inside Phil Nicoletti’s Club MX/FXR Yamaha YZ450F

ByKris KeeferOctober 30, 20240Comments

Hard Parts Suspension Yamaha

2023-2025 Yamaha YZ450F Optimal Swingarm Measurements

I am not going to sit here and tell you that you need to be as meticulous as we are at times here at Keefer Inc. Testing but if you like to tinker and make adjustments here are some key swingarm pivot to center of rear axle lengths. I have tried a lot of different…

ByKris KeeferOctober 29, 20240Comments

Bike Brands Performance Yamaha

2024-2025 Yamaha YZ450F Optional ECU Maps

If you're looking for some optional maps to try for your 2024-2025 here are two recently that I have tried. One map has more torque feel yet has more connectivity because of the TC setting. The second map is more aggressive, has less engine braking but has a good amount of traction out of corners…

ByKris KeeferOctober 27, 20240Comments

Bike Brands Kawasaki

2025 Kawasaki KX250 Optional ECU Map

If you'r looking for a little less engine braking and some more low/mid RPM response this map should help you. It will not pull as long in 2nd or 3rd gears but can help get you back into the meat of the power (recovery) quicker than the stock map. Yes, there are two maps loaded…

ByKris KeeferOctober 23, 20240Comments

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