Kris Keefer – Page 13 – Keefer, Inc. Tested

RMATVMC Keefer Tested Show #411: Modified Comparison (2025 Yamaha YZ250F vs. Honda CRF250R)

http://media.blubrry.com/keefer_tested/pulpmx.com/podcasts/250109_keefer.mp3 Keefer gets a modified YZ250F with a second injector, Vortex ECU as well as an FMF muffler to go against a Honda CRF250R with a ported cylinder head, HC piston, Vortex ECU and Akrapovic muffler in order to see which one is better. Different mods may have different outcomes on the track so we dissect…

ByKris KeeferJanuary 15, 20250Comments

REP Linkage (2023-2025 Yamaha YZ450F)

Yamaha changed the linkage ratio for 2025 on the YZ450F. Yamaha was looking to keep the rear up so basically the whole curve of the 2025 linkage ratio is stiffer and that is why Yamaha went down on their spring to a 5.6 N/m from a 5.8N/m spring on the 23/24 models. When Mark Johnson…

ByKris KeeferJanuary 13, 20250Comments

Motocross

Daytime Program: A1

ByKris KeeferJanuary 13, 20250Comments

Bike Brands Gasgas Hard Parts Honda Husqvarna Kawasaki KTM Suspension Suzuki Yamaha

2025 450 MX Baseline Suspension Settings

For 2025, we’ve had some updates on a few of the 450 MX’ers, Yamaha, KTM, Husqvarna, Gas Gas and Honda all have had some form of updates to their chassis and suspension specs. This means for 2025, baseline clicker settings have changed a little from the previous year. We make sure to spend some time…

ByKris KeeferJanuary 8, 20250Comments

Trackside

Dez Corner Track Training

ByKris KeeferJanuary 8, 20250Comments

Bike Brands Garage Honda Kawasaki Tech Yamaha

Velocity Components Steering Stem Spanner Tools

When looking for steering stem spanner tools as well as a better way to grease your steering stem bearings look no further than Velocity Components, as they offer two tools that are more effective and are more efficient. How many times do you glove up to pack you steering stem bearings? I recommend it at…

ByKris KeeferJanuary 7, 20250Comments

Bolt-Ons Hard Parts Kawasaki

Moto Hose Works Y Silicone Radiator Hose Kit

Written/Tested By: Eddie Laret In 2024 Kawasaki released their new model KX450 with an all-new frame design. This meant the engine had a few different parts to them as the radiator hose kit was a major change for the 2024/2025 models. They relocated the water temperature sensor and jacket in the middle of the upper radiator…

ByKris KeeferJanuary 7, 20250Comments

Bike Brands Honda Kawasaki Keefer Tested Podcasts

RMATVMC Show #410: 2025 Kawasaki KX 450SR vs. Honda CRF 450RWE

http://media.blubrry.com/keefer_tested/pulpmx.com/podcasts/250104_keefer.mp3 Keefer breaks down the differences between. the red and green "edition" bikes and tells you what might be the better choice for you. In this episode we will cover chassis stability, engine character, suspension and even ergonomics to inform you which color could be that glass slipper you're looking for.

ByKris KeeferJanuary 6, 20250Comments

Bike Brands Bolt-Ons Hard Parts Yamaha

Yamaha YZ450F Flywheel Weight

If you’re a Yamaha YZ450F owner you know that your bike can be a handful at times. If it’s not a handful then you can disregard this test altogether. For me the YZ450F is one of the best bikes in the 450 class for 2025 but it still needs some work to be an easy…

ByKris KeeferJanuary 4, 20250Comments

Bike Brands Hard Parts Performance Yamaha

Tested: Yamaha YZ250F With Dual Injector

ByKris KeeferJanuary 2, 20250Comments