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C.A.R.B. Compliance Info The California Air Resources Board (CARB) & Motorcycle Aftermarket Parts Each state has its own emissions and inspection requirements.  In California this is managed by the Air Resources Board (CARB for short).  CARB has determined that certain aftermarket motorcycle parts are not legal for sale or highway use in the state of California.  Items subject to this determination include certain exhausts, fuel controllers and other parts w …

Revving Up Your Ride: Upgrading to Mikuni Carburetors and LED Headlights at SpeedMotoCo Hey riders, Speed here from SpeedMotoCo in beautiful Bend, Oregon. As we kick off 2026, I wanted to share some thoughts on how small upgrades can transform your motorcycle, whether you're building a cafe racer, restoring a vintage bike, or just looking to boost performance on your daily ride. Today, let's dive into two of our most popular product lines: Mikuni carburetor kits and high-performance LED hea …

Wake Up Your Triumph: Why a Mikuni Carb Kit from SpeedMotoCo is the Best Upgrade You’ll Make If you own a vintage Triumph—like a Bonneville, Tiger, or TR6—you already know what it's like to ride a piece of history. But as much as we love the soul of these British twins, the stock Amal carbs can be… let's just say, temperamental. That’s where the Mikuni carburetor upgrade kit comes in. ?️ Why Upgrade to a Mikuni? Mikuni carbs are known for their reliability, sm …

We offer many different types of Harley EFI to carb conversion kits! Ranging from 1100-1700$. Mikuni Advertises the HSR as a bolt on 15hp/10tq. Get rid of your pesky fuel Injection. No electronic hassle to worry about. Listed below are the Carbs/ Ignitions we offer. You can find all of the kits here. If you dont see your bike listed, shoot us a call or email! 541-6876400 or shop@speedmotoco.comHSR42/45/48 Raw & Polished availableAll of the carburetor kits are complete total kits. They inclu …

Looking to spice up or revitalize your old Japanese inline 4 cyl? Look no further! Speedmotoco is now offering Mikuni RS Series Carburetors for your Honda, Yamaha, Suzuki, Kawasaki Inline 4 cyl. Unmodified, or even souped up race engines, we have the kit for you. The Mikuni Rs series carbs offer more power, snappier throttle response and more refined power curve. These are brand new genuine Mikuni carbs straight from Japan. Dont see your bike listed? Shoot us a call or email 541-687-6400 or shop …