DakotaCBR
08-12-2009, 10:29 PM
The Motion Pro Revolver Throttle Kit is a variable rate, quick-turn throttle kit designed for use at the racetrack. The stock throttle tube has a pretty wide opening rate and is not adjustable, which can make getting it to full throttle difficult in some situations. Before, when I was coming onto a straight at the track, I had to either twist my wrist into an awkward and uncomfortable position to get to full throttle or roll off for a second to readjust my hand position. This costs time, especially at tracks that incorporate long straights or places that require full-throttle, so I wanted to try a quick-turn kit that would allow me to comfortably go to full throttle without having to adjust my hand position. This led me to the Revolver Throttle Kit from Motion Pro.
http://i98.photobucket.com/albums/l269/Sunkistbass/Revolver1.jpg
What’s In the Box?
- Throttle Housing
- Cables
- Throttle Tube
- Four Variable Cams in 35mm, 40mm, 45mm, and 50mm sizes
- Motion Pro RoadControl Grips
- A Freaking Great Set of Directions
First Impressions:
The kit is fairly straight forward. There are four cams which you can use to adjust the rate that the throttle opens. The cams attach to a nylon throttle tube and they only fit on it one way, making it easy to put together without any guess work. The cam and cable housing is made of cast aluminum and seems pretty durable. From a ‘crashability’ standpoint, I was kind of disappointed that the cams and throttle tube are made from heavy-duty nylon instead of aluminum, but after thinking about it, I guess it would not make too much of a difference in a wreck. The nylon pieces are probably much cheaper to manufacture and replace and are pretty durable anyway, so it isn’t really a big deal. The stock throttle tube is also made from nylon.
Installation of the Throttle Assembly:
Installation of the throttle kit is pretty simple and is made even easier with the directions that come with the kit. If you can change throttle cables, you can install the Revolver Kit. Before installing the new cables, make sure to lube them as they do not come lubed from the factory. Now, take off the old throttle cables and install the Motion Pro cables, making sure to orient them correctly for push/pull. If you mount them incorrectly the throttle will operate backwards.
To choose the cam you want, you’ll need to consider what kind of track you are riding on and what your personal preferences are. The bigger the size of the cam, the faster the throttle will open and the smaller the degree of twist will be. For example, if you are on a very technical track where you need more sensitive throttle control, use the 35mm or 40mm cams. If you are on a high speed track or a track with a long straight and need quicker throttle response, use the 45mm or 50mm cams. Do not start out with the largest cams, because throttle response will be quite different than you are used to, which could put you on your head pretty quick. Start with the smaller cams and then work your way up to the bigger ones one at a time. The cams are color-coded and clearly labeled for easy identification.
http://i98.photobucket.com/albums/l269/Sunkistbass/IMG_3027.jpg
The assembly comes with a pointed set screw that is installed to help hold the throttle onto the bar, although the main allen screws make it pretty rigid. I tightened everything down, including the set screw so that it would make an impression on the handlebar. Then, I loosened the assembly and used a prick punch to put a divot in the bar so that the set screw had something more substantial to dig into. I then reinstalled the assembly and set screw onto the bar.
http://i98.photobucket.com/albums/l269/Sunkistbass/IMG_3030.jpg
Next, install the grip onto the throttle tube. The tube has ridges on it to aid in holding the grip on, but I make sure to safety-wire the grips on anyway. A tip for installing grips – use an air compressor to spray some air between the grip and throttle sleeve, and then push the grip on the tube while there is a cushion of air in between both pieces. The throttle housing has a bevel that gives the grip a bit more clearance so that it does not drag on the assembly. After the grip is on and secure, adjust the slack in the throttle cables to your liking.
http://i98.photobucket.com/albums/l269/Sunkistbass/IMG_3037.jpg
I had to rewire my CBR's Start/Stop/Run switch because the stock unit contains the throttle tube housing. Motion Pro also sent me a kill switch to wire into the bike. If you're installing this kit on an '03-06 CBR600RR and would like tips on the wiring and a color coded wiring diagram, I've drawn one here:
http://www.cbr600rr.com/forum/index.php/topic,21671.0.html
Finished:
http://i98.photobucket.com/albums/l269/Sunkistbass/IMG_3048.jpg
Thoughts:
- There are a few popular options for quick-turn kits out there, including HRC throttle tubes for Honda's, R1/R6 throttle housing and tubes, and then the Yoyodyne and Revolver Throttle Kits. The HRC and R1/R6 tubes do not allow for any adjustability in the throttle rate, so I was not interested in going that route. That left the Yoyodyne kit and the Motion Pro Revolver Kit. The Motion Pro set is brand new and offers four variable cams as opposed to Yoyodyne’s three, so I went with the Revolver kit.
- The way that the cables are routed make the adjusters rub up against the brake reservoir cap. I was able to remedy this by bolting a silicone-covered brake line clamp on the clip-on mount and between the reservoir and cable adjuster, which pulls the adjuster away from the reservoir cap.
- The kit seems well built and very durable, so I’m very pleased with the quality. The cams are very easy to install in the housing and the installation was very straight forward. Like I said before, the kit comes with an awesome set of directions that make install a snap.
- I am starting with the 40mm cam to see what I like best. Just to see the variation, I put the 50mm cam on and compared it to the stock throttle on my ’06 600RR streetbike, and the difference in throttle rate is extremely noticeable. The Revolver Throttle Kit does exactly what I wanted for a pretty good price. It is a high quality product that I’m sure will be a necessity on all of my future track bikes.
Where Can You Get Yours?
Motion Pro products are circulated by pretty much every major distributor in the world, including Parts Unlimited, Tucker Rocky, and Lockhart Phillips. The Revolver Kit retails for $154.99 and the Start/Stop/Run Switch retails for $35.99. All individual components of the kit can be purchased separately for replacements or spares. Check with our site sponsors for a great deal on this kit!
http://i98.photobucket.com/albums/l269/Sunkistbass/Revolver1.jpg
What’s In the Box?
- Throttle Housing
- Cables
- Throttle Tube
- Four Variable Cams in 35mm, 40mm, 45mm, and 50mm sizes
- Motion Pro RoadControl Grips
- A Freaking Great Set of Directions
First Impressions:
The kit is fairly straight forward. There are four cams which you can use to adjust the rate that the throttle opens. The cams attach to a nylon throttle tube and they only fit on it one way, making it easy to put together without any guess work. The cam and cable housing is made of cast aluminum and seems pretty durable. From a ‘crashability’ standpoint, I was kind of disappointed that the cams and throttle tube are made from heavy-duty nylon instead of aluminum, but after thinking about it, I guess it would not make too much of a difference in a wreck. The nylon pieces are probably much cheaper to manufacture and replace and are pretty durable anyway, so it isn’t really a big deal. The stock throttle tube is also made from nylon.
Installation of the Throttle Assembly:
Installation of the throttle kit is pretty simple and is made even easier with the directions that come with the kit. If you can change throttle cables, you can install the Revolver Kit. Before installing the new cables, make sure to lube them as they do not come lubed from the factory. Now, take off the old throttle cables and install the Motion Pro cables, making sure to orient them correctly for push/pull. If you mount them incorrectly the throttle will operate backwards.
To choose the cam you want, you’ll need to consider what kind of track you are riding on and what your personal preferences are. The bigger the size of the cam, the faster the throttle will open and the smaller the degree of twist will be. For example, if you are on a very technical track where you need more sensitive throttle control, use the 35mm or 40mm cams. If you are on a high speed track or a track with a long straight and need quicker throttle response, use the 45mm or 50mm cams. Do not start out with the largest cams, because throttle response will be quite different than you are used to, which could put you on your head pretty quick. Start with the smaller cams and then work your way up to the bigger ones one at a time. The cams are color-coded and clearly labeled for easy identification.
http://i98.photobucket.com/albums/l269/Sunkistbass/IMG_3027.jpg
The assembly comes with a pointed set screw that is installed to help hold the throttle onto the bar, although the main allen screws make it pretty rigid. I tightened everything down, including the set screw so that it would make an impression on the handlebar. Then, I loosened the assembly and used a prick punch to put a divot in the bar so that the set screw had something more substantial to dig into. I then reinstalled the assembly and set screw onto the bar.
http://i98.photobucket.com/albums/l269/Sunkistbass/IMG_3030.jpg
Next, install the grip onto the throttle tube. The tube has ridges on it to aid in holding the grip on, but I make sure to safety-wire the grips on anyway. A tip for installing grips – use an air compressor to spray some air between the grip and throttle sleeve, and then push the grip on the tube while there is a cushion of air in between both pieces. The throttle housing has a bevel that gives the grip a bit more clearance so that it does not drag on the assembly. After the grip is on and secure, adjust the slack in the throttle cables to your liking.
http://i98.photobucket.com/albums/l269/Sunkistbass/IMG_3037.jpg
I had to rewire my CBR's Start/Stop/Run switch because the stock unit contains the throttle tube housing. Motion Pro also sent me a kill switch to wire into the bike. If you're installing this kit on an '03-06 CBR600RR and would like tips on the wiring and a color coded wiring diagram, I've drawn one here:
http://www.cbr600rr.com/forum/index.php/topic,21671.0.html
Finished:
http://i98.photobucket.com/albums/l269/Sunkistbass/IMG_3048.jpg
Thoughts:
- There are a few popular options for quick-turn kits out there, including HRC throttle tubes for Honda's, R1/R6 throttle housing and tubes, and then the Yoyodyne and Revolver Throttle Kits. The HRC and R1/R6 tubes do not allow for any adjustability in the throttle rate, so I was not interested in going that route. That left the Yoyodyne kit and the Motion Pro Revolver Kit. The Motion Pro set is brand new and offers four variable cams as opposed to Yoyodyne’s three, so I went with the Revolver kit.
- The way that the cables are routed make the adjusters rub up against the brake reservoir cap. I was able to remedy this by bolting a silicone-covered brake line clamp on the clip-on mount and between the reservoir and cable adjuster, which pulls the adjuster away from the reservoir cap.
- The kit seems well built and very durable, so I’m very pleased with the quality. The cams are very easy to install in the housing and the installation was very straight forward. Like I said before, the kit comes with an awesome set of directions that make install a snap.
- I am starting with the 40mm cam to see what I like best. Just to see the variation, I put the 50mm cam on and compared it to the stock throttle on my ’06 600RR streetbike, and the difference in throttle rate is extremely noticeable. The Revolver Throttle Kit does exactly what I wanted for a pretty good price. It is a high quality product that I’m sure will be a necessity on all of my future track bikes.
Where Can You Get Yours?
Motion Pro products are circulated by pretty much every major distributor in the world, including Parts Unlimited, Tucker Rocky, and Lockhart Phillips. The Revolver Kit retails for $154.99 and the Start/Stop/Run Switch retails for $35.99. All individual components of the kit can be purchased separately for replacements or spares. Check with our site sponsors for a great deal on this kit!