Possibly lower end, RSt, Capa, Gila, 281 etc. Lever turns to push base of cap down approx10mm to pre-load fork. Thread pitch 1mm.
Front Damper Rod Adjuster For Fork Repair Knob Fork Preload Adjustment Nut Suspension Service Tool Mountain For Bike Maintenance Part Plastic Cap(27.6mm)
Bicycle Suspension Fork Preload Tuning Knob Plastic Damper Rod Adjustment Component for Fork Oil Base Maintenance (25.7mm)
700c 28” SUNTOUR HYBRID CR-8 SUSPENSION FORK PRELOAD 1 1/8” 300mm V BRAKE RED
WHITE 700c 28” SUNTOUR M3010 HYBRID SUSPENSION FORK PRELOAD 1 1/8” 300mm V BRAKE
SR Suntour Front Fork Preload Dial Adjuster Knob XCR XCM XCT XCT-JR Suspension
Front Fork Preload Button Knob Fit for SUNTOUR XCM Mountain Bike