Our Torque Monster Clutch Kits are available for all SR Viper Models ranging from the 129″ RTX through 162″ MTX. These clutch kits are tailored per customer (no cookie cutter set-ups) to take the guess work out of the picture. Designed by SBM to improve the Vipers at engagement, low, mid, throttle response, engine braking and top speed. Lets talk about engagement. We are clamping the belt harder @ the primary clutch (the small pulley) to reduce belt slip, gain belt longevity and widen the gear ratio. Have you noticed that loading and unloading the sled is difficult because it wants to spin the track and leap forward or backwards uncontrollably. Even backing up is hard and sometimes problematic. Have you also experienced having to blip the throttle a bunch of times to negotiate a turn at lower speeds? This is where Schmidt Bros Motorsports comes in.
Our clutch kits were developed for each model specifically. This four stroke engine has over 71 ft lbs of torque @ 3,500 rpm’s, so why would you need to engage @ 3,800 – 4,200 rpm’s. You won’t believe how well you will be able to maneuver at lower speeds with the addition of the lower 2,800 rpm engagement. Now lets talk mid-range arm stretch. Basically all models over-rev from the factory and this means, you are above the peak torque and hp of the engine. A stock sleds tach will generally read 8,900 to 9,200 rpm’s with the throttle pegged at mid speeds which is about 400 to 700 rpm’s above peak hp. If you think your SR Viper is fast now, try keeping it in the (CAMSHAFT) all the way to top end. Talk about torque monster. A big plus from this set up will be lower rpm’s. This translates into better fuel mileage across the board and broad torque in the mid-range. Get control of your SR Viper and make a night and day difference and harness the awesome torque that puts a smile on your face so that you can put it where it belongs, the snow.
Low engagement doesn’t mean low power anymore!
SR Viper Comfort Clutch Kit:
The SR-Viper Comfort Clutch kit is for the dreaded 3,900-4,200 rpm higher engagement in these models. This kit offers a 2,800 RPM engagement which is 1,200-1,400 RPM’s lower then the factory set up.
This clutch kit lowers the engagement for smooth take-offs and maneuvering. You will experience less track spin, jumpiness, the thrown forward feeling. Don’t be fooled by the word “Comfort”. With this kit you will see improved mileage, increased power to the ground, and a comfortable/controlled use of reverse. Includes a primary spring, rollers and a full quiet kit.
“Comfort” does not mean slow. Along with an extended top end, you will also get:
- Smooth take-offs
- No trenching out
- Awesome low speed maneuvering
- Less track spin
- Comfortable/controlled use of reverse
- Improved mileage
- Increased power to the ground
- Smooth consistent cornering
- Reduced inside ski lift
SR-Viper Comfort Clutch Kit Price: $169.99
SR-Viper MTX Comfort Clutch Kit Price: $79.99
Arctic Cat XF 7000 Comfort Clutch Spring Price: $79.99
SR Viper Stage II:
All the benefits of the Comfort Clutch Kit above with the added performance gains from a tailored flyweight calibration (rivets for your stock flyweights).
You will also receive a custom progressive over-driven progressive helix and secondary spring suited to your riding style and sled mods. With this helix / spring combo you will experience greatly improved throttle response and a full, smooth shift.
SR Viper RTX 129″ LTX 137″ & XTX 141″ Track Models: $439.99
SR Viper MTX 141″ 153″ & 162″ Track Models: $349.99
Boosted? Supercharged? Turbocharged?
Are you trenching out on take-off? By adding our low engagement primary spring we can lower your engagement by 1000 RPM. This spring is for heavier weighted primary clutches. Includes a Full Quiet Kit to take that annoying rattling noise away by 80%.