Ibis Tranny Geometry
NOMINAL SIZE Small Medium Large X-Large
SEAT TUBE LENGTH (A) 15" 17" 19" 21"
HEAD TUBE ANGLE (B) 70° 70° 70° 70°
SEAT TUBE ANGLE C 73° 73° 73° 73°
EFFECTIVE TOP TUBE (D) 560 (22") 580 (22.8") 605 (23.8") 630 (24.8")
HEAD TUBE LENGTH (E) 105 (4.1") 115 (4.5") 135 (5.3") 155 (6.1")
CHAIN STAY LENGTH (F) 425 (16.7") 425 (16.7") 425 (16.7") 425 (16.7")
WHEELBASE 1034 (40.7") 1065 (41.9") 1091 (43") 1117 (44")

Measurement in millimeters unless otherwise noted
Seat Post Diameter: 31.6 mm
Front Derailler: 34.9 mm
Headset: Integrated standard
BB height: 12"
Recommended fork travel: 100mm
Geometry based on using a 100mm travel fork with 10mm sag