Engine - Keefer, Inc. Tested

Testing Terms: Engine/Suspension Updated

If you learning more about your motocross bikes and also getting the lingo down, there is some help for you below. Here are some common terms that we use within the R&D industry that can help you explain what your bike is doing to tuners. Even if you just want to sound cool when you’re…

ByKris KeeferDecember 13, 20210Comments

2022 Yamaha YZ250F GYTR High Performance Engine Kit

There aren’t very many OEM manufacturer accessory divisions out there that offer actual engine mods for their machines. Oh wait, there isn’t one! The only manufacturer that offers anything engine related is Yamaha. KTM used to have KTM Factory Services but that has been shut down yet GYTR is still going strong with a long…

ByKris KeeferOctober 11, 20210Comments

Bike Brands Kawasaki KiT Motocross

2021 Kawasaki KX250 Maps

Here is a map that should be tried with the black coupler. This map will increase pulling power out of area 3 of corners as well as give you more mid-top end stretch in 2-3rd gears.

ByKris KeeferOctober 7, 20200Comments

Bike Brands KiT Motocross Suzuki

2020 Suzuki RM-Z250 Blue Collar Project Part Two

Kris recently assigned me the 2020 RM-Z 250 to test and do a little project with. I have to say I’ve been having a blast riding it and trying to make it better. It’s a super fun bike to ride, despite the sometimes bad reputation it gets. If you haven’t read Part 1 of our…

ByColton AeckJune 22, 20200Comments

Bike Brands Bolt-Ons Clutch KiT Performance Yamaha

Wrench Rabbit Yamaha YZ125 Engine Rebuild Kit

By Michael Allen: Although one of the main perks or being a part of Keefer Inc. Testing is getting to ride the latest and greatest bikes, there are times when you need to have your own bike. I needed my own bike because I was going to race the Los Ancianos Tecate Enduro that is…

ByMichael AllenOctober 28, 20190Comments

Bike Brands Bolt-Ons KiT Performance Yamaha

2018 Yamaha YZ450F Dubach Racing Engine Relocation Kit

The new 2018 Yamaha YZ450F corners much better than in previous years, but still can feel like it has some front tire pushing when there is nothing to bank off of. This is not as drastic a feeling as it was in 2017, but some riders want more front end bite out of the blue…

ByKris KeeferJanuary 26, 20180Comments

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