Rocky Mountain Bicycles.

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EDGE 20

Mountain, XC Recreational

Specification

FrameRMB Custom 6061 Aluminum
ForkSR Suntour M2000N
Front Travel50mm
Rear ShockN/A
Rear TravelN/A
Head SetFSA no TH-888
StemAlloy 31.8mm x 25° 60mm
HandlebarXC Alloy 30mm rise, 600mm
BrakesPromax TX-122 alloy linear spring V Type
Brake LeversTektro TS325AP
ShiftersShimano REVO SHIFT 6spd
Gearing (FR)N/A
Gearing (RR)Shimano RD-TZ40
Cranks & ChainringsCWI alloy 140mm w/ Double chainguard 36T
Bottom BracketCartridge TH 7420
PedalsVP 560 resine
Hubs (FR)Alloy w/QR
Hubs (RR)Alloy w/QR
CassetteShimano HG-22-6 14-28T
ChainKMC Z50
SpokesUPC
RimsAlex Z1000, alloy 20
Tires (RR/FR)Kenda 20
Seat PostAlloy 27.2mm
SaddleRMB Jr.

Geometry

Size12
Head Length
Head Angle70.5°
Seat Angle74°
Seat Tube length280
Horiz. Toptube Length430
Headtube Length90
Chainstay Length350
BB Drop5
Wheelbase845
Front-Centre
Standover Height556
Fork Rake
Seat Tube (center-center)

ST3


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.

SPORT HARDTAIL

    Ride Guide

  • Cross Country Marathon / 60%
  • Cross Country Racing / 80%
  • Cross Country / 100%
  • Recreational / 100%