Hashtagg 135.9 Screw-On Freewheel 18T

Description The Hashtagg 135.9 Screw-On Freewheel (18T) is a high-engagement trials-specific freewheel designed for riders who demand instant pickup, reliability, and compact dimensions. Featuring an advanced 135-point engagement system, it delivers precise power transfer for technical riding where control is critical. The 135 engagement points are achieved using three offset groups of three pawls engaging with a 45-tooth ratchet. Each pawl is actuated by its own individual spring, ensuring consistent, accurate engagement under load and reducing the risk of missed pickup during explosive moves. A dual sealed bearing design provides excellent driveshell stability and allows a unique construction that requires no lockring. Instead, the bearings are retained by an external circlip, helping to reduce weight while maintaining strength. To keep overall width to a minimum, the freewheel uses BB-style removal tabs. This allows removal with a standard Shimano-style 20-spline bottom bracket tool, making servicing straightforward. The slim profile also helps optimise chainline and crank clearance. Finished with distinctive #Hashtagg graphics on the drive shell, the 135.9 combines performance with a clean, purposeful look. Key Features 135 engagement point trials-specific freewheel 3 offset pawl groups with individual springs 45-tooth ratchet system Dual sealed bearing construction No lockring design with external circlip retention Compact width using BB-style removal tabs Removable with Shimano-style 20-spline BB tool #Hashtagg graphics on drive shell Specifications Tooth count: 18T Thread: 1.37″ x 24 tpi Freewheel width: 18.90 mm Weight: 175 g Built for elite-level trials riding, the Hashtagg 135.9 Freewheel delivers ultra-fast engagement, compact design, and dependable performance when set up and bedded-in correctly.