and the perfect rim width for balancing control and weight

Internal Width: 19

4-way stretch shell

Which wheel: Best suited to the rear

35% Polyester blend with a soft finish and feel

SDG Storm I-FLY Competition Saddle - Composite - M - Black - Storm PLP|Colour and the perfect rim widthBuilt for Speed. The lightest and most minimalistic racing saddle, utilizing the patented I Beam Railed Technology. I Beam: fiber composite single mono rail design for superior weight to strength ratio, with the widest range of adjustments Low profile nylon glass fiber base for unsurpassed strength Rear Buzz Cut cut out for increased tire clearance Microfiber top with protective Kevlar side panels, lightweight EVA foam padding Requires SDG I Beam