2026 Decathlon RockRider EXPL 100

Design
Flat Bar, Hardtail (Front suspension)
Frame
Aluminum
Fork
Aluminum
Features
Disc brake
Average stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Geometry

L
Stack
632mm
Reach
435mm
Stack to Reach Ratio
1.45:1
Seat Tube Length, C-T
480mm
Top Tube Length, Effective/Horizontal Center
620mm
Top Tube Slope
16.7deg
Head Tube Angle
69.5deg
Seat Tube Angle
73deg
Head Tube Length
125mm
Bottom Bracket Drop
60mm
Bottom Bracket Height
306.9mm
Chainstay Length
455mm
Chainstay Length Horizontal
451mm
Front-Center
696.6mm
Front-Center Horizontal
694mm
Wheelbase
1145mm
Fork Offset/Rake
46mm
Trail
88.1mm
very high
Mechanical Trail
82.5mm
Wheel Flop
28.9mm
Tire to Pedal Spindle
159.7mm
170 mm cranks
Pedal Spindle to Ground Clearance
136.9mm
170 mm cranks

EXPL 100 Build

L
Wheel Size
700C/29 in
622 mm BSD
Tire Width
2.2in
Tire Outer Diameter
733.8mm
Bike Length with Tires
1878.8mm
Crank Length
170mm
Handlebar Width
700mm
Stem Length
60mm
Stem Angle
15deg

Stack and Reach vs. Category Trend

Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale
Source:gemini.google.com