Keefer, Inc. Tested

Dunlop MX3S Or The Dunlop AT82 Front Tire? An East Coast Front Tire Comparison

Dunlop continues to produce the MX3S front tire and I am happy about it. Now that I am on the east coast and riding softer dirt, I wanted to revisit these two front tires back to back on several tracks to see how they compared and which one I preferred (somewhere other than Glen Helen.) I…

ByKris Keefer1 day ago0Comments

Bike Brands Yamaha

2025 Yamaha YZ450F East Coast Settings Update

ByKris Keefer4 days ago0Comments

Keefer Tested Podcasts

RMATVMC Keefer Tested Show #437: KTM 350 SX-F vs. Yamaha YZ450F Which One Is Better For You?

http://media.blubrry.com/keefer_tested/pulpmx.com/podcasts/250705_keefer.mp3 Let me walk you through the old age question... Should I get a 350 or a 450? I grab our modified KTM 350 SX-F as well as our trusty Yamaha YZ450F in order to guide you through all of the positives and negatives of each size and color. Is a modified 350 a disadvantage like…

ByKris Keefer4 days ago0Comments

Motocross

Daytime Program: Millville

ByKris Keefer5 days ago0Comments

Bike Brands Bolt-Ons Hard Parts Yamaha

Works Connection Aluminum Offset Footpeg Mounts (Yamaha YZ250F/450F)

The Yamaha YZ250F/450F cockpit still just feels a little tight to me. I still feel cramped even though Yamaha changed their footpeg offset on the YZ450F in 2023 and in 2024 the YZ250F followed. In those years Yamaha opened changed the offset to -5mm down and -5mm back but Works Connection has since introduced their…

ByKris KeeferJuly 10, 20250Comments

Bike Brands Honda

A Yamaha Killer? Honda CRF250R Dual Injected Walk Around

ByKris KeeferJuly 7, 20250Comments

Bike Brands Bolt-Ons Exhaust Hard Parts Kawasaki Performance

2025 Kawasaki KX250 Mods That Work

The 2025 Kawasaki KX250 is a lot different feeling on the track when comporting it to the 2024 version. The 25’ KX250 has a smoother engine character down low and is a little stiffer in the chassis. On the dyno the numbers between the 24 and 25 KX250 actually favor the new bike but on…

ByKris KeeferJuly 7, 20250Comments

Bike Brands Kawasaki Keefer Tested Podcasts

RMATVMC Keefer Tested Show #436: 2025 Kawasaki KX450SR Race Test With Gary Sutherlin

http://media.blubrry.com/keefer_tested/pulpmx.com/podcasts/250701_keefer.mp3 We gave Gary Sutherlin our 2025 KX450SR to race the vet weekend up at Mammoth Mountain MX so we ring him up to go over the details of the build as well as the race. What did Gary do to the bike? How was the durability of the KX450SR? Did it have enough power up…

ByKris KeeferJuly 7, 20250Comments

Bike Brands KTM Yamaha

Lap Time Comparison (YZ450 vs. KTM 350 SX-F)

ByKris KeeferJuly 2, 20250Comments

Exhaust Hard Parts Performance Triumph

FMF 4.1 Muffler System For Triumph TF-450 RC Edition

The Triumph TF450-RC Edition is the newest 450 motocross machine, but I have had A LOT of time on this bike in stock form and with some mods done like this FMF 4.1 muffler system. In stock form the TF450-RC Edition has a smooth low end power with a wide mid to top end but…

ByKris KeeferJune 30, 20250Comments