Bicycle Archive · Specification report

2021 Rocky Mountain Fusion 40

Velopedia Archive ID 900004602

Overview

Model year	2021
Brand	Rocky Mountain
Model	Fusion 40
Bicycle type	Mountain
Archive ID	900004602
Original MSRP	$1,249.00
Colors	BLACK/BEIGE
Sizes	SM; MD; LG; XL
Weight	29.48 LBS\|13.4 KGS

Frameset

Frame construction	Rocky Mountain 6061 Alloy. Threaded BB. Zero Stack Tapered Headtube 0 Rear Triangle
Frame material	Aluminum
Fork	RockShox Judy Silver Fast Black TK Air 100mm

Drivetrain

Shifters	Sram SX Eagle
Rear derailleur	Sram SX Eagle
Crankset	Sram SX Eagle Powerspline 30T
Bottom bracket	Sram Powerspline
Cassette	Sram PG-1210 11-50T
Chain	Sram SX Eagle

Brakes

Brakes	Shimano MT201 2 Piston

Cockpit & contact points

Headset	FSA No. 57B
Handlebar	Rocky Mountain XC 760mm
Stem	Rocky Mountain XC
Saddle	WTB Volt 142
Seatpost	Rocky Mountain 30.9mm

Wheels & tires

Hubs	Front: Shimano TX505; Rear: Shimano TX505
Rims	WTB ST i30 TCS 2.0 Tubeless / Tubeless Compatible - Tape / Valves / Sealant Not Incl
Spokes	2.0 Stainless
Front tire	WTB Ranger Comp 29 x 2.4
Rear tire	WTB Ranger Comp 29 x 2.4
Wheel size	29"

Geometry · SM · 29″

Seat tube	380 mm
Effective top tube	589 mm
Head tube	95 mm
Head-tube angle	66.5°
Seat-tube angle	74.5°
Chainstay / rear center	445 mm
Wheelbase	1153 mm
Bottom-bracket drop	60 mm
Reach	425 mm
Stack	593 mm
Standover height	763 mm
Wheel size	29

Geometry · MD · 29″

Seat tube	420 mm
Effective top tube	616 mm
Head tube	100 mm
Head-tube angle	66.5°
Seat-tube angle	74.5°
Chainstay / rear center	445 mm
Wheelbase	1180 mm
Bottom-bracket drop	60 mm
Reach	450 mm
Stack	598 mm
Standover height	776 mm
Wheel size	29

Geometry · LG · 29″

Seat tube	445 mm
Effective top tube	643 mm
Head tube	110 mm
Head-tube angle	66.5°
Seat-tube angle	74.5°
Chainstay / rear center	445 mm
Wheelbase	1209 mm
Bottom-bracket drop	60 mm
Reach	475 mm
Stack	607 mm
Standover height	786 mm
Wheel size	29

Geometry · XL · 29″

Seat tube	480 mm
Effective top tube	671 mm
Head tube	120 mm
Head-tube angle	66.5°
Seat-tube angle	74.5°
Chainstay / rear center	445 mm
Wheelbase	1238 mm
Bottom-bracket drop	60 mm
Reach	500 mm
Stack	616 mm
Standover height	801 mm
Wheel size	29

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 7, 2026.