Bolt-Ons

Parts That We Have Tried, That Work (2023 Gas Gas MC450)

We test a lot of parts over here at Keefer Inc. Testing, but sometimes some things fall through the cracks and we don't get to speak about every little nook and cranny we come across. We are creating this monthly article on pieces that we test that actually work well enough to warrant the money…

ByKris KeeferFebruary 11, 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 Bolt-Ons Hard Parts Kawasaki Performance Suspension

Comparing The WP XACT 6500 Cartridge Kit And Cone Valve Fork On The Track

A lot of you KTM/Husqvarna/Gas Gas owners ditch the stock AER fork set up and go to a WP spring fork. I also get a ton of emails about which WP product is best for you. This article is dedicated to those that are thinking about which Xact Pro component is right for them as…

ByKris KeeferJanuary 12, 20230Comments

Bike Brands Bolt-Ons Exhaust Gasgas Hard Parts Performance

Pro Circuit Ti-6 Muffler System (2023 Gas Gas MC350)

The Gas Gas MC350 isn’t a bike that I get to play with that long as the company requires the unit back early so I at least wanted to get a Pro Circuit muffler test in before they snatched the unit back. I have not tested many Pro Circuit pieces on a Gas Gas/KTM/Husqvarna so…

ByKris KeeferJanuary 9, 20230Comments

Bike Brands Bolt-Ons Hard Parts

Anchor Tape Co. Vented Front Number Plate (Yamaha YZ450F)

ByKris KeeferDecember 5, 20220Comments

Bike Brands Bolt-Ons Exhaust Hard Parts Kawasaki Performance

FMF 4.1 Stainless Muffler System (2023 Kawasaki KX250)

The Kawasaki KX250 has undergone some significant engine changes for 2023 and that sparked FMF to make an update to their 4.1 muffler system. The 2023 Kawasaki KX250 engine character has more low end grunt as well as pulling power than last year’s model but it still isn't quite as good as the Yamaha in…

ByKris KeeferDecember 1, 20220Comments

Bolt-Ons Hard Parts

SlipShot Holeshot Traction Control Device

SlipShot is a small hydraulic damper that controls the rate at which the clutch is allowed to engage at the start of a race. Mounted down near your engine at the clutch actuation arm or on the hydraulic master cylinder (like the one shown/tested), the unit is activated by a handlebar-mounted lever on the starting…

ByKris KeeferOctober 5, 20220Comments

Bolt-Ons Exhaust Hard Parts Husqvarna

To Slip On Or Not To Slip On? FMF 4.1 Slip On Muffler (2023 Husqvarna FC350)

Some muffler questions that get sent to my email inbox usually look like, “which muffler is best for my bike? Is a full system worth the money or can I just get away with purchasing a slip on”? “Is my stock muffler the best muffler option for me”? Instead of trying to keep answering some…

ByKris KeeferSeptember 28, 20220Comments

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

Bolt-Ons Yamaha

PDR Performance Offset Footpeg Mount (Yamaha YZ450F)

If you read my review of the Raptor offset pegs for the Yamaha YZ450F you know that I am a fan of the -5mm down/back pegs as well as the -7mm down setting. However, there hasn’t been anyone yet that is making the offset from the mount for the consumer. The Star Racing Yamaha guys…

ByKris KeeferJuly 13, 20220Comments

Sign Up to Our Newsletter