yz450f - Keefer, Inc. Tested

Pro Circuit Ti-6 Muffler System (2024 Yamaha YZ450F)

The Pro Circuit Ti-6 Titanium Exhaust System is constructed of titanium throughout the head pipe, mid pipe, and canister while the end-cap is carbon fiber. I wanted the Ti-6 system because I wanted to lose a little weight as the this version of the “6s” allows me to shed almost two pounds off of the…

ByKris KeeferJanuary 5, 20240Comments

Bike Brands Yamaha

To Hydro Or Not To Hydro (’23-24′ Yamaha YZ450F)

ByKris KeeferDecember 5, 20230Comments

Bike Brands Bolt-Ons Clutch Hard Parts Yamaha

Should You Hydraulic Or Cable? (23/24 YZ450F GYTR Hydraulic Clutch Kit)

The GYTR Hydraulic Clutch Kit is specially tuned to optimize disengagement zone, decrease lever load and minimize maintenance. As most hydraulic clutch setups, it self-adjusts to clutch heat and wear in most conditions to eliminate the need for manual clutch lever adjustment. The Yamaha Parts And Accessories Division have given us 2023/2024YZ450F owners an option…

ByKris KeeferOctober 10, 20230Comments

Bike Brands Bolt-Ons Exhaust Graphics Hard Parts Performance Suspension Tires Yamaha

Weekend Race Set Up: 2023 Yamaha YZ450F

Kris Keefer Track: Fox Raceway Terrain: Sandy top soil AM with hard pack in PM Start: Grate Avg. Lap Time: Wouldn’t Know Total Number Of Motos: 1 lap Weight At Time Of Race: 172 pounds w/o gear 2023 Yamaha YZ450F: Engine Hours 10.6 Mods/Parts: …

ByKris KeeferMay 31, 20230Comments

Bike Brands Bolt-Ons Hard Parts Performance Yamaha

Twin Air Power Flow Kit (2023 Yamaha YZ450F)

If you want to get rid of that plastic air filter cage system that sometimes doesn't seal all that well on the 2023 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,…

ByKris KeeferMay 16, 20230Comments

Bike Brands Honda Yamaha

RMATVMC Keefer Tested Show #329 – Parts/Mods That Actually Work (Honda CRF450R & YZ450F Edition)

http://media.blubrry.com/keefer_tested/pulpmx.com/podcasts/230426_keefer.mp3 There is a ton of parts that you can spend your money on and quite possibly those parts may not actually help you at all. Sometimes parts are smoke and mirrors so in this episode Keefer will break down which parts/mods work on the red and blue 2023 450 machines.

ByKris KeeferApril 27, 20230Comments

Bike Brands Bolt-Ons Exhaust Hard Parts Performance Yamaha

Akrapovic Evolution Muffler System (2023 Yamaha YZ450F)

The Akrapovic Evolution muffler system is one of the most beautiful looking systems out there in the market today, is well built, and has quality welds all the way around it. The change of shape in the Evolution muffler might take some getting used to but to me, it is one of the most under…

ByKris KeeferMarch 6, 20230Comments

Bike Brands Bolt-Ons Exhaust Hard Parts Performance Yamaha

Parts That I Have Tried, That Work (2023 Yamaha YZ450F Edition)

Since I test so many different parts on so many different bikes, I thought I would produce an article that gives you a few aftermarket parts that actually work. Over the next few months you can find, "Parts That I Have Tried, That Work, articles on all different types of bikes right here! I have…

ByKris KeeferJanuary 25, 20230Comments

Bike Brands Keefer Tested Podcasts Yamaha

RMATVMC Keefer Tested Show #314: Living With The 2023 Yamaha YZ450F After 25 Hours

http://media.blubrry.com/keefer_tested/pulpmx.com/podcasts/230103_keefer.mp3 Keefer breaks down the 2023 YZ450F and its strengths and weaknesses after he's spent over 20 hours on the new bLU cRU. Get some suspensions settings, gearing specs, clutch thoughts as well as how to make the new Yamaha feel calmer.

ByKris KeeferJanuary 5, 20230Comments

Bike Brands Bolt-Ons Hard Parts Yamaha

Works Connection Offset Titanium Footpeg Mounts (Yamaha YZ250/450F)

If there is something I can’t stand on the 2022 and earlier Yamaha YZ250/450F's is the rider triangle. It is cramped, my legs feel high up when seated and the seat feels like I am sitting in a valley. I have tried several different offset pegs as well as tall seats and different spec bars.…

ByKris KeeferSeptember 21, 20220Comments

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