FCP Yamaha Race Cups

What it is

• Offset bearing races.
• Changes rake by 1/3 degree.

The FCP Yamaha Race Cups are CNC-machined offset steering races (headset cups) designed to alter your motorcycle’s frame geometry without changing your triple clamps. Previously a coveted modification exclusive to factory race teams, this kit allows riders to adjust their bike’s headtube angle by ⅓ degree (20 minutes). Because the cups are fully reversible, they offer two distinct chassis setups. You can install them to "rake out" the front end and lengthen the wheelbase by 4–5mm to increase trail for maximum straight-line stability. Conversely, flipping them to "rake in" the front end shortens the wheelbase and decreases trail, delivering much quicker steering and tighter cornering response. The kit includes the top and bottom offset races, high-quality bearings, and seals. It retails for $589.99.

How it works

• Reduces front-end twitchiness and calms overall motorcycle.
• Turns better and adds stability.
• Slightly difficult to install without proper tools or experience.
• Minimizes fore-and-aft pitching under hard acceleration and heavy braking.

Chassis flex and geometry tuning have become the final frontier for modern bike setup. While most riders default to aftermarket triple clamps to alter handling, FCP (Factory Chassis Parts) offers a more fundamental approach with their Yamaha Race Cups. By utilizing CNC-machined offset bearing races, this kit alters the steering head angle by ⅓ degree. We pressed a set into our Yamaha test bike to see if this factory-level modification translates to real-world performance benefits for the everyday racer.

Something to note with these (other than it affects rake and trail much differently than offset triple clamps) is that by doing this, you don’t affect the chassis rigidity in any way. We’ve tested offset triple clamps and have found that more often than not, especially on a Yamaha that has comfortable clamps in stock trim, is that it’s hard to maintain cornering precision without added rigidity. Some clamps corner as good or better than the stock Yamaha clamps but are more rigid at the hands, while others are as comfortable as the stock clamps but don’t turn as well and lose front end feel. These cups maintain the stock hand feel without added rigidity.

These cups do feel drastically different than anything we’ve ever tried and are not that comparable to running aftermarket clamps in terms of feel on the track. The most immediate sensation when dropping into a corner with the FCP cups installed is a slightly heavier steering feel at the handlebars. However, this is far from a negative. That added weight translates to more front-end feel and traction. The front tire feels glued to the dirt and flows through a corner smoother than stock. 

In corners, the Yamaha’s do at times have a busy, twitchy front end that lead to micro-corrections with body positioning or movement through the handlebars, especially when balance and technique aren’t perfect. The FCP cups drastically reduce these quick, nervous movements. The bike tracks through ruts and long sweepers with more predictability, suffering from far less oversteer. Instead of fighting a front end that wants to knife or climb out of ruts, you get a highly controllable, locked-in steering arc. Something that our riders noticed and at times missed but overwhelmingly will take the trade off with is the bike doesn’t cut down in turns as quickly or as easily with these cups installed. If you’re a point and shoot in the corners type of rider, this will affect you more than those who aim to carry momentum and flow more.

Where this modification truly shines is when the speed of the track opens up. The overall motorcycle becomes remarkably calmer. By altering the trail and lengthening the wheelbase (when run in the stable, raked-out orientation), the chassis resists the unsettling fore-and-aft pitching that usually occurs under heavy acceleration and hard deceleration or braking.

Coming down fast, rough downhills into heavy braking bumps, the bike stays flatter, allowing the suspension to do its job rather than forcing the rider to manage a lot of movement in the bike. Head-shake is minimalized, and the entire chassis feels more planted, balanced, and less reactive. We tried this mod both with stock and modified suspension on our 2026 Yamaha YZ450FX and with the stock suspension, we did experience a lot of deflection at high speeds when the front end was unloaded and were on the gas through small chop and rocks. The stock suspension is stiffer in nature, especially initially in the stroke, and these ups raking the front end out amplified that a bit. But when the front end is loaded and weighted, or with revalved suspension, this goes away and we really saw the benefits of these cups.

While the performance gains are massive for riders looking to calm down their chassis, it does come with a couple of trade-offs. As we said before, some testers did miss the ability to instantly snap or "turn down" tightly in the apex of a corner. It requires slightly more physical effort to initiate an immediate change of direction. Also, this is not a 15-minute bolt-on job. Installing the cups requires removing the old bearing races and pressing the new offset cups into the frame. Additionally, you have to run FCP’s bearings which is a simple swap on the top bearing that just sits in the frame, but you have to press the old bearing off the lower triple clamp and the new one back on. Without proper chassis tools (like a dedicated blind-hole puller and a high-quality bearing press), low-to-mid-level mechanics can find this installation difficult and risk damaging the frame or the cups. If you aren't confident, find a friend that is and they’ll make light work of it.

For the rider looking to eliminate front-end twitch, improve cornering predictability, and create a much calmer, more stable motorcycle at speed, the FCP Yamaha Race Cups are an incredibly effective tuning tool. It trades away a bit of low-speed agility for a marked improvement in high-speed chassis control. The FCP Race Cups turn a hyper-responsive, sometimes busy chassis into a composed weapon that tracks like it's on rails.