Performance

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FMF 4.1 Muffler System (2021 KTM 250 SX-F)

My son and I have been going back and forth on mufflers for his KTM 250 SX-F and have went though about three until we settled on the FMF 4.1. We have tried the HGS (which was good), a Yoshimura, as well as a Pro Circuit system, but for his riding style and what he…

ByKris KeeferJune 7, 20210Comments

Bike Brands Bolt-Ons Exhaust Honda KiT Performance

Slip On Or Full Muffler System (2021 Honda CRF450/250R)

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 KeeferMay 19, 20210Comments

Bike Brands Bolt-Ons Exhaust KiT Performance Yamaha

Akrapovic Evolution Muffler (2021 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. Once hot, the titanium color of the headpipe is the most dynamic blue you will ever see from any muffler manufacturer, which just makes…

ByKris KeeferApril 27, 20210Comments

Bolt-Ons KiT Performance Suspension

Dunlop MX12 Rear Tire (120/80-19)

Dunlop offers a wide variety of tires for us moto/off-road guys but you don’t see too many reviews of the MX12 scoop tire out there. I recently had the chance to try a 120/80-19 rear MX12 at a few different tracks that range from sand to intermediate terrain with the occasional hard pack afternoons at…

ByKris KeeferApril 21, 20210Comments

Bike Brands Bolt-Ons Exhaust Kawasaki KiT Performance

Yoshimura RS-12 Stainless Muffler System (2021 Kawasaki KX450)

The stock 2021 Kawasaki KX450 is pretty damn good machine, but that muffler looks atrocious right? We called up on Yoshimura to see if we can get a more attractive aftermarket muffler system that is actually better than the stock system. I will say that the stock KX450 muffler system works pretty damn well, but…

ByKris KeeferMarch 29, 20210Comments

Bike Brands Bolt-Ons Exhaust Honda KiT Performance

FMF 4.1 RCT Muffler System (2020-2021 Honda CRF250R)

The 2020-2021 Honda CRF250R chassis is one of the most fun to ride in the 250 class, with its easy to corner nature as well as a great suspension package. However, Honda focused a lot of their engine R&D on peak horsepower and not torque, which to me the CRF250R lacks the most of. When…

ByKris KeeferFebruary 10, 20210Comments

Bike Brands Bolt-Ons Exhaust KiT KTM Performance

HGS Exhaust System For 2021 KTM 250 SX-F

Something that most riders (including me) may not see a lot of in the states is HGS exhaust systems. HGS is a Netherlands based company that has been making exhausts since the early 90s and are mostly popular among European club riders and of course many factory supported MXGP teams. I had the chance to…

ByKris KeeferFebruary 8, 20210Comments

Bike Brands Bolt-Ons KiT KTM Performance Suspension

The Makings Of A Great WP Pro Component Settings On The KTM 450 SX-F (With REP Suspension)

Let me preface this article with how much I like to ride the KTM 450 SX-F. But… Yes, of course there is always a “but”, right? I like a lot of things about the KTM 450 SX-F, but the stock suspension isn’t one of them. The AER fork is a slight headache for me as…

ByKris KeeferFebruary 3, 20210Comments

Bolt-Ons Exhaust KiT Performance

DR.D Stainless Full Muffler System

By: Michael Allen And Kris Keefer It’s no secret that Doug Dubach knows Yamahas. That being said, after years of testing for Yamaha Doug started Dubach Racing Development where he builds finely tuned exhaust systems for other major motocross models. However, this isn’t one of those “other” motorcycles and we wanted to take that atrocious…

ByKris KeeferJanuary 14, 20210Comments

Bolt-Ons KiT Performance

Zero Resistance Throttle

I am one to usually change my throttle tube out several times during the lifespan of my test machines. Plastic tubes wear out and it can get tough to pull the throttle after some use. I am not a huge fan of aluminum throttle tubes because they help throttle resistance minimally and usually give me…

ByKris KeeferJanuary 4, 20210Comments

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