Ridley Bike Size Chart

Ridley's flagship aero road platform, raced by Lotto Dstny in the WorldTour. F-Surface Plus tube treatment and integrated F-Bar cockpit reward a long, low position - riders between sizes should choose the smaller frame to preserve the aggressive front end and keep the integrated bar at its intended drop. The integrated cockpit limits post-purchase stack adjustment, so size selection up front is critical.

Lightweight all-rounder that replaced the Helium SLX as Ridley's climbing-and-classics frame. Slightly more relaxed reach than the Noah Fast at the same numeric size and a marginally taller stack make it the more versatile race bike for hilly day rides and gran fondos. True to Ridley's chart - choose by height first, then drop one size if you want a deeper drop or race position.

Endurance carbon road bike with a taller head tube, longer wheelbase, and clearance for 32mm tires. Stack rises ~20mm vs the Falcn RS at the same size, so most riders should pick their published height bracket without sizing down. Designed for long-distance comfort, sportives, and rough Belgian roads.

Pure climbing frame in Ridley's lineup before the Falcn RS took over the lightweight slot - still sold in select markets and a strong value as builds clear. Aggressive race geometry close to the Noah Fast but with rounder tube shapes; riders between sizes should size down for a race fit or stay at the larger size for endurance use.

All-road / light gravel frame with clearance for 40mm tires and mounts for a top-tube bag and full fenders. Sits between the Fenix endurance road and the Kanzo gravel platforms - sizing matches the road chart but the slightly taller stack favors riders who normally pick the larger of two adjacent sizes.

Race-oriented carbon gravel bike built for Unbound and Belgian Waffle Ride pace, with aero tube shaping carried over from the road range and clearance for 42mm tires. Geometry mirrors the Noah Fast's reach at each size with ~10mm extra stack and a slightly longer wheelbase - road riders should pick the same numeric size.

Bikepacking-focused gravel frame with clearance up to 50mm tires, dropper post routing, and frame-bag and triple-fork mounts. Stack is taller and reach shorter than the Kanzo Fast for an upright loaded-touring position - riders sizing for comfort over speed should pick their published height bracket without sizing down.

World-Cup proven cyclocross frame - long-time chassis of the Belgian national team. Pure CX geometry: high bottom bracket, short wheelbase, and 33mm tire clearance for UCI racing. CX riders typically pick one frame smaller than their road size for quicker handling and easier dismounts.

Race-bred all-road / fast gravel platform with clearance for 40mm tires and aero-influenced tube shapes. Reach matches the Kanzo Fast but with a marginally lower stack for a road-race position on mixed-surface events. Riders between sizes who prioritize comfort should pick the larger frame.