Bolt-Ons

Yamaha YZ125 Pipe/Silencer Comparison (Pro Circuit Vs. FMF)

For over 10 years the YZ125 engine has remained the same. At one time it was the best 125cc engine around, but in recent years that award has gone to KTM/Husqvarna. KTM and Husqvarna’s latest 125cc engines have a wider powerband and is simply more exciting everywhere on the track. Compared to the KTM and…

ByKris KeeferJanuary 30, 20200Comments

Bike Brands Bolt-Ons Exhaust KiT Performance Yamaha

FMF 4.1 RCT Stainless Muffler System For 2020 YZ250F

Written/Tested By: Michael Allen It’s no secret that the YZ250F is one of, if not the best 250F in the class for 2020. One of the things that makes the YZ stand out is the raw amount of torque it produces compared to the other bikes in the class. Some of the other bikes may…

ByMichael AllenDecember 16, 20190Comments

Bike Brands Bolt-Ons KiT Performance Yamaha

Twin Air Power Flow Filter Kit (Yamaha YZ450F)

If you want to get rid of the somewhat janky stock air filter cage system of the 2018-2020 YZ450F, go with the Twin Air Power Flow Filter Kit. To me the Twin Air YZ450F PowerFlow kit is the best all-around filter system for the YZ450F airbox. Why? With this kit, Twin Air replaces the stock…

ByKris KeeferDecember 3, 20190Comments

Bolt-Ons KiT Performance Suspension

WP XACT Pro Components Real World Review

When deciding to spend a few thousand extra dollars on suspension for your ten thousand dollar KTM/Husqvarna, you want to know if it’s going to make a difference immediately. Is it going to make me a better rider? Will I be able to ride faster with it? Do the WP’s XACT Pro Components that much…

ByKris KeeferDecember 2, 20190Comments

Bike Brands Bolt-Ons Exhaust KiT Performance Yamaha

FMF Vs. Pro Circuit (2020 Yamaha YZ450F Muffler Comparison)

Yamaha did a great job with the stock muffler and I bet if you ask any aftermarket muffler manufacturer they would tell you the same thing. If you’ve seen my social media pictures while riding the Yamaha YZ450F, you will see that I run the stock system quite a bit. Why? Because it’s really good!…

ByKris KeeferNovember 25, 20190Comments

Bolt-Ons KiT Performance

Fire Power Parts Review

Fire Power Featherweight Lithium Ion Polymer Battery Fire Power lithium batteries are for use in Powersports vehicles only (motorcycle, scooter, ATV/UTV). Fire Power batteries are direct replacement batteries for your vehicles original battery. Fire Power batteries have Lithium Ion Polymer technology and all components are designed, manufactured, assembled and packed in one location assuring high…

ByKris KeeferNovember 21, 20190Comments

Bike Brands Bolt-Ons Exhaust Honda KiT Performance

Akrapovic Evolution Muffler System (2020 Honda CRF450R)

This is embarrassing, but I am going to be completely honest here… I think about the Honda CRF450R a lot. More than other machines. I mean I will literally wake up in the middle of the night and think of things to test in order to try and make the Honda chassis calm down a…

ByKris KeeferNovember 5, 20190Comments

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 Exhaust KiT KTM Performance

FMF Factory Fatty Pipe/Shorty Silencer (2020 KTM 125SX)

Since the delivery of our KTM 125 SX, my son Aden has been riding it non stop. He also has been barking in my ear about getting a pipe and silencer so it “sounds cool”. While I am usually reluctant to add parts to my kid’s bike for the sake of just doing it, I…

ByKris KeeferOctober 23, 20190Comments

Bike Brands Bolt-Ons KiT Yamaha

YZ450F GYTR Tall Seat

Yamaha has an accessory division called GYTR and when it comes to accessories for your YZ they have tons to offer. I wasn't quite happy with the “pocket” feel that the stock 2020 YZ450F seat has to it once the foam is broken in, but managed to stumble across the Yamaha Accessories tall seat while…

ByKris KeeferOctober 8, 20190Comments

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