Suspension

• High-tensile steel construction • Springer suspension • Threaded • 1-inch diameter (7/8-inch inner diameter) • 20-inch version steerer length: 148mm • 26-inch version steerer length: 180mm

The RockShox SID SL Ultimate BRAIN incorporates a race-tuned Brain Inertia Valve with Position-Sensitive technology into the all-new RockShox SID SL chassis. New Position-Sensitive Brain technology provides more platform support while maintaining small bump compliance and chassis balance, making this the most efficient BRAIN yet. Position-Sensitive technology allows riders to sag into the fork 15mm for a balanced ride, providing supple small bump compliance and a firm pedaling platform without the need for a remote lockout or levers to flip. All new SID SL Ultimate Chassis features a machined alloy crown to shed even more weight while increasing stiffness. - New Position-Sensitive tune provides an increase in platform support. - New SID SL Ultimate chassis features increased stiffness, lighter weight, and reduced friction. - Torque cap compatible for stiff dropout/hub interface. - 100mm travel, 44mm offset, 110mmx15mm hub spacing.