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2025 Rocky Mountain Reaper 20 Bike

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Rocky Mountain
Where To Buy
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free U.S. shipping on everything.
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (contiguous U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $69 (continental U.S. only).
International shipping available. Some exclusions apply.

Specifications

Product
Rocky Mountain Reaper 20 Bike
Model Year
2025
Intended Use
Cross Country
Trail
Rider
Kids
Sizes and Geometry
One Size
View Full Geometry
Sizes Additional Info
• All specifications listed are with 120mm travel fork


• Standover height is measured 200mm in front of the bottom bracket
View Full Geometry
Wheel Size
Other: 20"
Frame Material
Aluminum
Frame Material Details
FORM alloy front and rear triangles; molded chainstay, seatstay, and lower down tube protection
Rear Travel
120mm
Rear Shock
RockShox Deluxe Select, 170mm length x 35mm stroke
Fork
Manitou Machete JUNIT Comp, TPC damper, 32mm stanchions, 40mm offset
Fork Travel
120mm
Head Tube Diameter
Tapered, 1.125" top, 1.5" bottom
Headset
FSA Orbit No.57B
Handlebar
Rocky Mountain Jr, 640mm width, 25mm rise, 9° backsweep, 5° upsweep, 31.8mm clamp diameter, for 19mm grips
Stem
Rocky Mountain AM, 40mm length, 5° rise, 31.8mm bar clamp
Grips
SDG Slater JR, lock-on
Brakes
Tektro HD-J2820, 2-piston, Shimano pad compatible
Rotors: Tektro
Brake Levers
Tektro HD-J2820, short reach
Drivetrain
1x
Shifters
microSHIFT Advent, 9-speed, short reach
Front Derailleur
None
Rear Derailleur
microSHIFT Advent Super Short, 9-speed, with clutch
ISCG Tabs
2-bolt ISCG05
Chainguide
None
Cranks
Rocky Mountain Microdrive Alloy, two-piece, 24mm spindle, 127mm length
Chainrings
Rocky Mountain Microdrive, 28 tooth, 104mm asymmetrical BCD
Bottom Bracket
Press-fit
Pedals
None
Chain
KMC X9, 9-speed
Cassette
SunRace CSM98, 9-speed, 11-36 tooth
Rims
WTB KOM Team i30 Alloy, TCS 2.0, 30mm inner width, 28 hole
Hubs
Shimano TC500, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with HG driver
Spokes
Stainless steel, 2.0
Tires
Kenda Regolith, 20" x 2.4"
Saddle
Rocky Mountain Kids
Seatpost
TranzX +RAD 1.0 dropper, adjustable travel, 70-100mm drop
Seatpost Diameter
30.9mm
Seatpost Clamp
Single bolt
Rear Dropout / Hub Dimensions
12mm x 148mm (Boost)
Max. Tire Size
 
Bottle Cage Mounts
None
Colors
Highway To Hell/Stairway To Heaven/Black Dog
Warranty
5 years frame; 1 year paint, decals, and frame hardware
Weight
 
Miscellaneous
• SMOOTHLINK Four-Bar Horst-Link rear suspension design with size-specific tunes
• Internal cable routing
Price
$2,699.00
More Info

Rocky Mountain website

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Where To Buy
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free U.S. shipping on everything.
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (contiguous U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $69 (continental U.S. only).
International shipping available. Some exclusions apply.
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