| Frame | RMB Custom 6061 Alu |
| Fork | Suntour Duro DJ |
| Front Travel | 130mm. Rebound |
| Rear Shock | N/A |
| Rear Travel | N/A |
| Head Set | FSA ZST no.10 |
| Stem | RMB FR 10° x 40mm |
| Handlebar | RMB AM Ø31.8mm x 680mm x 5° Sweep |
| Brakes | Avid BB5 Mechanical Disc 185mm |
| Brake Levers | Avid FR5 |
| Shifters | Sram X4 Triggers 8spd |
| Gearing (FR) | Shimano Altus 31.8mm |
| Gearing (RR) | Sram X4 |
| Cranks & Chainrings | Truvativ Ruktion 170-175mm Bash/32/22T |
| Bottom Bracket | Truvativ Howitzer XR |
| Pedals | RMB AM Flats |
| Hubs (FR) | RMB XC Disc |
| Hubs (RR) | Shimano M475 Disc |
| Cassette | Sram PG-820-8 11-32 T |
| Chain | Sram PC-830 |
| Spokes | Stainless |
| Rims | WTB FX28 |
| Tires (RR/FR) | Maxxis High Roller 2.35 |
| Seat Post | RMB XC 27.2mm |
| Saddle | RMB FR |
| Size | 13.5” | 15” | 16.5” | 18” | 19.5” |
| Head Length | |||||
| Head Angle | 68° | 68° | 68° | 68° | 68° |
| Seat Angle | 71.5° | 71.5° | 71.5° | 71.5° | 71.5° |
| Seat Tube length | 340 | 380 | 420 | 460 | 500 |
| Horiz. Toptube Length | 550 | 572 | 595 | 625 | 635 |
| Headtube Length | 120 | 120 | 120 | 125 | 125 |
| Chainstay Length | 425 | 425 | 425 | 425 | 425 |
| BB Drop | 30 | 30 | 30 | 30 | 30 |
| Wheelbase | 1051 | 1073 | 1096 | 1116 | 1136 |
| Front-Centre | - | - | - | - | |
| Standover Height | 730 | 749 | 767 | 788 | 806 |
| Fork Rake | - | - | - | - | |
| Seat Tube (center-center) | - | - | - | - |
When we first started building bikes it quickly became apparent that traditional frame geometry wasn't going to cut it on the steep descents and tight turning singletrack of southern British Columbia. To help tame this rugged landscape we developed ST3 Geometry - or Sloping Top Tube Technology. A sloping top tube means increased frame stiffness and strength, and when things aren't going so well, more stand over height for crucial dismounting ease.
The frame layout creates a compact front end, giving increased agility in tight turning singletrack while providing increased stiffness for greater control in all conditions. It's also bomber construction: with a greater separation between the top tube/seat tube and seat tube/seat stay welds, frame stress is distributed over a larger area of the seat tube. Originated by Rocky Mountain and copied by others, ST3 delivers a better handling, stronger frame - the ride of a lifetime.
