Performance

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Yoshimura RS-9T Stainless Full System (2020 Honda CRF250R)

The 2020 Honda CRF250R is much better off the bottom end than the 2018-2019 versions, but we wanted to test the latest full stainless Yoshimura RS-9T to see if it helped the stock Honda’s engine character at all. We were specifically looking for a little more RPM response and pulling power because the Honda is…

ByKris KeeferJune 10, 20200Comments

Bike Brands Bolt-Ons KiT KTM Performance Suspension

REP Knuckle For 2015.5-Up KTM Shock

As the hours keep ticking away on the 2020.5 KTM 450 SX-F Factory Edition test machine, I have been going through test parts like crazy. I have been testing the REP (Research Engineering Performance) re-valved WP XACT Pro Components and have good things to say about Mark’s work, but I wanted to get a little…

ByKris KeeferJune 2, 20200Comments

Bike Brands Husqvarna KiT Performance Suspension

Kreft Suspension Review (Husqvarna TE300i)

Written By: Michael Allen Let’s be honest, as riders we have all probably uttered these words to a suspension tuner, “I want it plush, but stiff”. I would imagine that every suspension guy has heard that phrase and grits his teeth every time he hears it. That is where Kreft comes in with their revolutionary…

ByMichael AllenMay 29, 20200Comments

Bike Brands Bolt-Ons Honda Kawasaki KiT Performance Yamaha

Recommended Handlebar Specs For 2020 MX Machines

When it comes to handlebars I am a pain in the ass. The height, width, rise, and position is very important to me between each bike that I test. I find that you can’t run the same handlebar bend on every bike, even though I like a bend on one bike, sometimes it doesn’t feel…

ByKris KeeferMay 19, 20200Comments

Bolt-Ons KiT Performance

Fastway Air EXT Foot Pegs

Fastway Air EXT pegs are on a mission to reduce ankle injuries, or at least limit the severity when an impact goes wrong. The basic idea is a wide but fairly conventional 2024 billet aluminum footpeg with a teardrop-shaped sort of heel peg welded to the rear of the normal peg. The teardrop ankle-saving portion…

ByKris KeeferMay 14, 20200Comments

Bike Brands Bolt-Ons KiT Performance Yamaha

Vortex Ignition For 2020 YZ450F

The Yamaha YZ450F comes with the Yamaha Power Tuner App that allows you to change the parameters of the bLU cRU’s ECU settings. It allows the consumer to customize their YZ450F power delivery, so that they can enjoy a more friendly power character or a more aggressive type of delivery. While this system works very…

ByKris KeeferApril 28, 20200Comments

Bike Brands Bolt-Ons Husqvarna KiT Performance Suspension

Ride Engineering Full Performance Linkage (Husqvarna FC450)

Getting that comfortable feel as well as increased track toughness can be somewhat hard to find on the Husqvarna FC450. At least for me anyway. I can go to tracks that are soft and tighter and be completely happy with the Husqvarna and then go to a fast/choppy track that has more flowing corners and…

ByKris KeeferApril 20, 20200Comments

Bike Brands Bolt-Ons Exhaust Honda KiT Performance

2020 Honda CRF450R Three Way Muffler System Comparison

The 2020 Honda CRF450R is a popular machine. After all of my years with Dirt Rider Magazine as well as doing my own thing over here at Keefer Inc. Testing there has been one thing that hasn't changed… The amount of page views and questions that I get about the Honda are always more than…

ByKris KeeferApril 5, 20200Comments

Bike Brands Bolt-Ons KiT Performance Suspension Suzuki

RIDE ENGINEERING 2018-2020 Suzuki RM-Z 450 Performance Link

By Dallas Dunn: I’ve been helping out Keefer with photography content for some time now, but I’ve been wanting to get more into the testing side of things so Kris has gave me the opportunity to ride the 2020 Suzuki RM-Z450 test bike for the year, so the first mod for this bike was going…

ByDallas DunnMarch 31, 20200Comments

Bolt-Ons Exhaust KiT Performance

FMF 4.1 Full System Vs. Akrapovic Evolution Full System Vs. Akrapovic Slip On

We recently received the 2020.5 KTM 450 SX-F Factory Edition and after dissecting it for a few weeks, we thought we would test a couple different muffler systems on it. We wanted to see if we could improve upon the KTM Factory Edition’s delivery. The KTM comes with an Akrapovic slip on we thought since…

ByKris KeeferMarch 16, 20200Comments

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