Introducing the STM Tuner Secondary for the new 2022+ Polaris RZR Pro R models! This secondary features an all billet construction and is capable of using compression or torsion springs with different spring rates, while featuring the STM style GEN1 style helixes.
The Tuner Secondary fits under the stock clutch housing and works with the stock primary or the STM Rage 4 or Rage 6 Primary. Best results are acquired when running both the STM primary and STM tuner together. This includes a new hub insert for use with the stock secondary bolt, and an adjuster nut tool to change the belt and set the belt tension.

What's Included?

• WSRD Spec STM Tuner Secondary Clutch
  
• STM Secondary Spring
  
• STM Secondary Helix