Felix Prangenberg signature frame. Made from butted, seamless 4130 Japanese chromoly tubing. CNC machined and heat-treated 127mm tall head tube for integrated headsets. Extra-thick, double-butted top tube with top tube and down tube gussets. CNC machined and heat-treated Mid bottom bracket shell with varying thickness to minimize denting. Wider rear triangle allows clearance for large 2.5″ width tires. No brake mounts. Extruded offset thickness, dent-resistant chainstays. 7.5mm thick invest cast dropouts. Includes WTP seat post clamp. This frame carries a lifetime warranty through the manufacturer.
NOTE: This frame is not designed for use with brakes.
Head Tube: 76º
Seat Tube: 71º
Standover Height: 9.66″ (20.75″, 21″ and 21.25″ top tube)
9.35″ (20.5″ top tube)
Bottom Bracket: 11.7″
Chainstay: 12.9″ – 13.5″ optimized for 13″-13.25″ (20.75″, 21″, and 21.25″ top tube)
12.7″ – 13.25″ optimized for 12.75″-13″ (20.5″ top tube)
Weight: 5.2 lbs (21″ TT)


























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