Yamaha

Pro Circuit Link Arm (2020 Yamaha YZ450F)

I have tried links in the past on previous generation YZ450F’s with less than stellar results, but since Yamaha changed the frame on the 2020 machine, I thought I would revisit a link to see if it helps improves the Yamaha’s feel around the track. Pro Circuit's linkage arms are CNC-machined from billet aluminum and…

ByKris KeeferMarch 10, 20200Comments

Bike Brands Bolt-Ons Exhaust KiT Performance Yamaha

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 KiT Motocross Yamaha

2020 Yamaha YZ250F Top 5 Mods

Written By Michael Allen And Kris Keefer: The YZ250F is one of the best 250 four strokes in class for 2020, but that doesn’t mean it can’t be made even better. Here are five easy and relatively inexpensive modifications that will make you love your 2020 YZ250F even more. 1. Keefer “Free Feeling Map”: The…

ByKris KeeferJanuary 8, 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

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

Bike Brands KiT Off-Road Yamaha

2020 Yamaha YZ125X/250FX Introduction

Editors Note: It’s hard to be in two places at once. Yamaha scheduled their 2020 YZ125X/250FX introduction in South Carolina after I booked a testing trip to New Mexico. With that being said, it’s not as easy as you think to find good people to help you give some quality feedback in this industry. I…

ByColton AeckNovember 20, 20190Comments

Bike Brands KiT Motocross Yamaha

2020 Yamaha YZ450F World Vet National Race Weapon

I am a goal driven person and I like to set goals for myself, so I usually pick two big goals each year. The two goals I set out for myself for 2020 were as follows: to race the AMA Lucas Oil Pro Motocross nationals and of course the Dubya USA World Vet Championships at…

ByKris KeeferOctober 30, 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 Honda Husqvarna Kawasaki KiT KTM Motocross Yamaha

2020 450 MX Bracket Shootout (Fourth, Fifth, Sixth)

As long as I can remember, shootouts have been a staple in our industry. I remember being an 11 year old kid reading about the 1987 80cc Shootout in Dirt Rider Magazine and then proceeding to ask my dad for a Honda CR80 because it was the winner. Little did I know that just because…

ByKris KeeferOctober 25, 20190Comments

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