2021 Decathlon RockRider AM 100 HT Medium
Build
650B/27.5 in × 2.25 in
Insights
Average stack and reach vs trend of hardtail all-mountain/enduro mtb bikes
Design deviates from other sizes of Decathlon RockRider
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 621.2mm |
| Reach | 431.5mm |
| Stack to Reach Ratio | 1.44:1 |
| Seat Tube Length, Unknown | 400mm |
| Top Tube Length, Effective/Horizontal Unknown | 610mm |
| Head Tube Angle | 66deg |
| Effective Seat Tube Angle, Unknown | 72deg |
| Head Tube Length | 105mm |
| Bottom Bracket Drop | 50mm |
| Bottom Bracket Height | 299.2mm |
| Chainstay Length | 433.5mm |
| Chainstay Length Horizontal | 430.6mm |
| Front-Center | 743.7mm |
| Front-Center Horizontal | 742mm |
| Wheelbase | 1172.6mm |
| Fork Offset/Rake | 51mm |
| Trail | 99.6mm very high |
| Mechanical Trail | 91mm |
| Wheel Flop | 37mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 224.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 129.2mm |
AM 100 HT Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.25in |
| Tire Outer Diameter | 698.3mm |
| Bike Length with Tires | 1870.9mm |
| Handlebar Width | 760mm |
| Stem Length | 35mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 130mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 165 cm to 174 cm |
Source:https://www.decathlon.it/p/mtb-all-mountain-am-hardtail/_/R-p-331946?mc=8641876