RockShox: Looking to shave grams and boost performance of your XC race bike? SID SL Ultimate is your answer. With an air spring inspired by SID, increased bushing overlap, lower friction, and room for bigger tyres, it is a lightweight fork built for the serious XC racer. SID SL Ultimate takes it a step further with a machined, anodised crown, giving racers a sleek, polished look that stands out on the start line.Features NEW DebonAir+ air spring Lightest XC fork available 80mm - 110mm travel options NEW Electric Red Signature colourway Charger Race Day 2 Damper with Open/Pedal/Lock positions 32mm chassis SPECIFICATIONSModel designator: Ultimate Wheel size: 29" Travel: 100mm Damper type: Charger Race Day 2 Fork offset: 44mm (29") Maxle included: Maxle Stealth Colour: Electric Red - Gloss E-Bike approved: Not Approved Steerer: 1.5" Tapered Axle: 15x110mm BOOST™ Axle to crown: 511mm Brake type: Disc Crown material: Forged, hollow aluminium Lower leg type: Magnesium Upper tube finish: Fast Black Upper tube type: 32mm straight wall aluminium Damper adjust: 3-position remote (Cable Pull 7mm + 7mm – sold separately) Damping adjustments: External rebound, 3-position remote (open/pedal/lock) Volume reducer: 0/3 Tokens Spring: DebonAir+ Max tyre diameter: 755mm Max tyre width: 62mm Maximum rotor size: 200mm Minimum rotor size: 160mm Crown OD: 56mm Max recommended system weight: 331lbs / 150kg Max air pressure: 195 PSI