Runtu Sizing & Geometry

S1 S2 S3 S4
A) Seat tube length 400.0 mm 400.0 mm 420.0 mm 440.0 mm
B) Top tube length 588.7 mm 615.8 mm 635.8 mm 665.8 mm
C) Head tube length 130.0 mm 140.0 mm 140.0 mm 140.0 mm
D) Head tube angle 63.5 degrees 63.5 degrees 63.5 degrees 63.5 degrees
E) Seat tube angle 77.0 degrees 77.0 degrees 77.0 degrees 77.0 degrees
F) Chain stay length 440.0 mm  450.0 mm  450.0 mm 450.0 mm
G) Wheelbase 1234.4 mm 1273.9 mm 1293.9 mm 1323.9 mm
H) Stack 644.3 mm 653.2 mm 653.2 mm 653.2 mm
I) Reach 440.0 mm 465.0 mm 485.0 mm 515.0 mm
J) Bottom bracket drop 30.0 mm 30.0 mm 30.0 mm 30.0 mm
K) Fork length Geometry designed with a 160 mm travel, 576 mm axle to crown and 44 mm offset fork