2013 Decathlon RockRider 8.1

Design
Flat Bar, Hardtail (Front suspension)
Frame
Aluminum
Suspension
100mm fork travel
Features
Disc brake
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Geometry

S
M
m
L
XL
Seat Tube Length, C-T
406mm
458mm
483mm
533mm
Seat Tube Length, C-C
458mm
Top Tube Length, Effective/Horizontal Center
555mm
580mm
595mm
615mm
Top Tube Length, Effective/Horizontal Unknown
580mm
Head Tube Angle
71deg
71deg
71deg
71deg
71deg
Seat Tube Angle
74deg
74deg
74deg
74deg
73deg
Head Tube Length
100mm
100mm
110mm
110mm
140mm
Bottom Bracket Height
Chainstay Length
425mm
425mm
425mm
425mm
425mm
Wheelbase
1043mm
1068mm
1067mm
1078mm
1094mm
Trail
Mechanical Trail
Wheel Flop

8.1 Build

S
M
m
L
XL
Wheel Size
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
Tire Width
2.25in
2.25in
2.1in
2.25in
2.25in
Tire Width Max
2.5in
2.5in
2.5in
2.5in
Tire Outer Diameter
673.3mm
673.3mm
665.7mm
673.3mm
673.3mm
Bike Length with Tires
1716.3mm
1741.3mm
1732.7mm
1751.3mm
1767.3mm
Crank Length
170mm
170mm
172.5mm
175mm
Handlebar Width
640mm
640mm
640mm
640mm
Stem Length
100mm
100mm
100mm
100mm
Stem Angle
0deg
0deg
0deg
0deg
Source:http://www.btwin.com/notices/fr/geometrie-de-cadres-vtt-2013/, pdf