2021 Decathlon RockRider ST 540 L

Build

650B/27.5 in × 2.25 in

Insights

Average stack and reach vs trend of hardtail cross-country mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
617mm
Reach
426mm
Stack to Reach Ratio
1.45:1
Seat Tube Length, Unknown
443mm
Top Tube Length, Effective/Horizontal Center
615mm
Top Tube Slope
19.2deg
Head Tube Angle
69.5deg
Seat Tube Angle
73deg
Head Tube Length
140mm
Bottom Bracket Drop
43mm
Bottom Bracket Height
306.2mm
Chainstay Length
430mm
Chainstay Length Horizontal
427.8mm
Front-Center
689.5mm
Front-Center Horizontal
688.2mm
Wheelbase
1116mm
Fork Offset/Rake
42mm
Fork Length (On-Axis)
496mm
Trail
85.7mm
very high
Mechanical Trail
80.3mm
Wheel Flop
28.1mm
Tire to Pedal Spindle Distance
With 170 mm cranks
170.4mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
136.2mm

ST 540 Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
2.25in
Tire Outer Diameter
698.3mm
Bike Length with Tires
1814.3mm
Handlebar Width
680mm
Stem Length
80mm
Suspension Type
Hardtail (Front suspension)
Bar Type
Flat Bar
Fork Travel
100mm
Suspension Sag
Unknown
Frame Material
Aluminum
Fork Material
Unknown
Brake Type
Disc
Source:https://www.decathlon.fr/p/velo-vtt-st-540-27-5/_/R-p-301097?mc=8500756