BOLANY Trunnion Rear Shock 185/205mm Coil Air 550lbs DH

BOLANY Trunnion Rear Shock Coil Air 550lbs Construction

The trunnion design positions the shock closer to the frame centerline, reducing bending moments and improving pivot durability compared to standard horizontal mounting. Dual suspension technology combines 550lbs coil spring preload with 300PSI air adjustability, letting riders dial in progressive curves that feel planted and responsive. Two travel lengths at 185mm and 205mm accommodate modern DH geometry and e-MTB frame designs rated for aggressive descents. Rebound adjustable architecture allows fine-tuning of extension speed, preventing harsh top-outs while maintaining uphill pedaling efficiency. The sealed bearing interface and protective boots shield internal components from contamination during creek crossings and muddy terrain exposure.

Trunnion Design Advantages for Downhill and E-MTB Riders

Downhill racers benefit from the rigid bushing interface that trunnion mounting provides, as stiffer lateral connection improves cornering precision and mid-turn adjustability. E-mountain bike owners find the 550lbs coil spring particularly valuable when motor power combines with rider weight, requiring strong progressive resistance through full stroke. The 300PSI air rating gives you substantial pressure range to dial perfect balance between comfort and control across varying trail conditions. BOLANY trunnion shocks ship with detailed installation guides for popular frame brands and complete technical support. Shop the official website now to upgrade your downhill or electric mountain bike with this innovative hybrid suspension technology.