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Sportsman 400 non-EBS 472-DP400SP: Improved belt grip and bottom to mid acceleration without loss of top speed. This kit works well with stock 25-o...

472-DP450 Sportsman 450 2017-18 Sportsman 450 4x4 25” to 27” tires This clutch kit for the 450 improves bottom end response and acceleration. The k...

472-DBW450 Sportsman 450 28” and larger tires (can also be used with some of the heavy 27” mud tires). A lot of power can be lost from adding big t...

Polaris Sportsman 500 EFI fuel injected models w/EBS. Oversized tires only. 472-DBW500EF: A cost-effective kit designed to help restore some of the...

Sportsman 600 Oversized Tires: 472-DBW600. On this machine, with the addition of oversize mud tires, our heavier Dalton EBS black secondary spring ...

Polaris Sportsman 700 More aggressive acceleration for high performance riders. Includes a set of billet steel DaltonPro flyweights, a different pr...

Polaris Sportsman 800 EFI Oversized Tires: 472-DPPSOBL. The stock 800 EFI comes with 26 inch tires. If you choose to switch to heavier, more aggres...

2017 + RZR turbo has a higher HP level right out of the box than the previous version, as well as some different stock clutch components in both cl...

Primary spring replacement. The 900 Ranger XP in this model year range has a well-known abrupt engagement of the clutch. Slow speed crawling is awk...

DUVP570 Standard version (not for 2012). This kit uses a new primary spring, as well as the model-specific adjustable flyweights, and a new second...

472-DBT400SP: Polaris Sportsman 400, Oversize Tires. Improved belt grip and bottom to mid acceleration. This kit was designed for extreme mud appli...

Bottom-mid-range for use with stock or oversized tires. Our most popular kit for the 500HO, it is designed to increase the belt grip and accelerati...

472-DBW500: Our most popular kit for the 500 HO, it is designed to increase the belt grip and acceleration, without losing top speed with stock tir...

472-DP500A: Polaris Sportsman 500HO More aggressive acceleration for high performance riders. Includes a set of billet steel DaltonPro flyweights, ...

Non-EBS version for 26-27’’ tires. This kit includes a new primary spring and a custom ground (private label) billet helix for the application. Pre...

Sportsman 570 EBS 25-27’’ Tires This kit is designed to maximize efficiency for stock to 27’’ tire sizes. A fully adjustable kit for the primary cl...

Sportsman 570 EBS 28’’ + tires (and some heavy 27’’ tires for mud applications). This kit includes a new primary spring, the Quick Adjust flyweight...

2021+ Sportsman 570 EBS/Trail - Oversized tires. Not for standard non-EBS models. (This kit fits the 21 and newer EBS clutches on most models with ...

Polaris Sportsman 700 EFI. Big wheel kit 472-DP700EBT. Proper clutch recalibration is critical when oversized tires are added on the EFI 700. This ...

Spring Spacer

Oversized tires 27”-28” This kit combines our popular plain/purple secondary spring with a new primary spring that has slightly higher fully compre...

Suzuki Twin Peaks 4X4 ONLY 700 V-twin model, 25-26 inches tires: 472-DK650700S. This combination of new slightly heavier secondary spring and our p...

Suzuki Vinson 500 4x4. 472-DSA500MT: Our heavier secondary spring has already proven to prolong belt life and help with bottom end response. Now, i...

ATV/UTV Secondary Springs

ATV/UTV Secondary Springs

472-DPSSMBL Metallic blue secondary spring is heavier than the secondary spring in our 472-DBW660Y Grizzly kit. It can be used as an accessory to a...