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Reaper 24 Mountain Bike - Kids'
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Warning: California Proposition 65
The Rocky Mountain Reaper 24 delivers 130mm trail geometry and a dropper post built for junior shredders
What Our Gearhead® Experts Are Saying:
"The Reaper 24 is spec'd with components I'd expect on a serious adult trail bike - a clutched MicroShift Advent X drivetrain, tubeless-ready Maxxis Minion tire combo, and a legitimate dropper post. The RIDE-2 system is a smart investment since it extends the frame's usable life as a kid grows. For parents wanting a bike their kid won't immediately outgrow technically, this is the one to spec."
Who It's For
Intermediate to advanced junior riders progressing fast on technical terrain
The Reaper 24 suits riders aged roughly 8-12 with developing trail skills who need a bike that won't hold them back. The geometry, component spec, and suspension travel are all calibrated for riders who are pushing limits rather than just cruising. The RIDE-2 system adds long-term value, letting the frame accommodate 26" wheels as the rider grows taller and stronger.
What It's For
Singletrack, bike park laps, and technical trail features on 24" wheels
Built around 130mm of rear travel and a 120mm Manitou JUNIT fork, the Reaper 24 is a legitimate trail machine designed for natural singletrack, jump lines, and progressive terrain. The 65.3-degree head tube angle and 405mm rear center provide stable, confidence-inspiring handling without feeling sluggish. Tubeless-ready WTB rims and Maxxis rubber allow for lower tire pressures that improve traction and compliance on loose or chunky terrain.
Why We Like It
Purpose-built junior trail geometry with zero compromises on component quality
Rocky Mountain's FORM Alloy construction is more than a marketing term - each tube is engineered specifically for its location in the frame, optimizing the balance of weight, stiffness, and compliance. The Smoothlink suspension platform delivers 130mm of efficient, progressive travel tuned specifically for the weight range of junior riders, avoiding the wallowy mid-stroke feel common on kids' bikes specced with adult-oriented shock tunes. Press-fit BB, internal cable routing, and sealed cartridge bearings throughout reflect genuine long-term build quality.
The MicroShift Advent X 10-speed drivetrain with a clutch rear derailleur handles rough terrain without chain slap or drops, and the 11-42T Sunrace cassette provides a usable gear range for climbing and descending. Tektro HD-J2820 hydraulic brakes feature short-reach levers sized for smaller hands, with Shimano pad compatibility for easy future servicing. The Shimano TC500 Boost hubs front and rear add stiffness to the 24" wheel platform where it matters most.
The Tranz X dropper post with 30mm of adjustment is a standout inclusion at this price point - it actively improves descending confidence and body positioning in the same way it does for adult riders. Combined with ISCG05 tabs for an optional chain guide, the Reaper 24 is built to handle escalating rider ambition without requiring a parts swap to keep up.
Heads up - We do our best to keep bike specs and images current, but occasional component changes can happen without warning-and sometimes the photos might not show the exact build you'll receive. If you want to double-check the details, our Gearheads are always here to help.
Details
- I'll generate product copy for the Rocky Mountain Reaper 24, a kids' mountain bike. Let me follow the structure precisely.
- Topline
- Built for shredding trails, the Rocky Mountain Reaper 24 grows with your kid
- What Our Gearhead® Experts Are Saying:
- "I love putting young riders on the Reaper 24 - it's one of those rare kids' bikes that actually performs like a real trail machine. The dropper post and tubeless-ready tires tell you everything about how seriously Rocky Mountain takes junior riding. Parents appreciate the adjustable geometry, and kids just appreciate how fun it is to ride."
- Who It's For
- The motivated young rider ready to take on real trails
- The Reaper 24 is built for kids who've outgrown beginner bikes and are ready to push into trail riding. Whether they're hitting flow trails or working up to chunkier terrain, this bike gives them the capability to grow their skills without outgrowing their equipment too soon.
- What It's For
- Trail riding that challenges and rewards young riders
- This bike is made for dirt trails, natural features, and bike park laps. With 130mm of rear travel and a 120mm fork, it handles the kind of riding adventurous kids actually want to do - rooty singletrack, small drops, and everything in between.
- Why We Like It
- A genuinely capable trail bike scaled perfectly for younger riders
- Rocky Mountain didn't just shrink an adult bike - they engineered the Reaper 24 from the ground up for junior riders. The RIDE-2 adjustable geometry system accommodates both 24" and 26" wheels, meaning this frame can grow alongside your kid. FORM Alloy construction keeps weight reasonable without sacrificing durability, and the size-specific suspension tune means the bike actually rides correctly
- Heads up - We do our best to keep bike specs and images current, but occasional component changes can happen without warning-and sometimes the photos might not show the exact build you'll receive. If you want to double-check the details, our Gearheads are always here to help.
- RIDE-2 geometry system accepts both 24" and 26" wheels so the frame stays usable as your rider grows
- Tranz X dropper post with 30mm of adjustment brings adult-level trail capability to younger riders
- Manitou JUNIT 34 Comp fork with 120mm travel soaks up trail chatter and small hits confidently
- RockShox Deluxe Select rear shock delivers 130mm of Smoothlink suspension travel tuned for lighter riders
- Maxxis Minion DHF front and DHR II rear tires provide proven traction in varied trail conditions
- MicroShift Advent X 10-speed drivetrain with clutch rear derailleur keeps the chain on through rough terrain
- WTB KOM Team i30 TCS rims are tubeless-compatible for lower pressure and better grip on the trail
- ISCG05 chain guide tabs allow for aftermarket chain guide installation as riding intensity increases
- Item #RMBB032
- Frame Material
- FORM Alloy
- Suspension
- Smoothlink
- Rear Shock
- RockShox Deluxe Select
- Rear Travel
- 130mm
- Fork
- Manitou JUNIT 34 Comp
- Front Travel
- 120mm
- Headset
- FSA ZS56/66
- Shifters
- MicroShift Advent X (10-speed)
- Rear Derailleur
- MicroShift Advent X (10-speed)
- ISCG Tabs
- ISCG05
- Crankset
- Rocky Mountain Microdrive
- Chainring Sizes
- 28t
- Crank Arm Length
- 140mm
- Bottom Bracket
- Press Fit
- Cassette
- Sunrace CSMS2
- Cassette Range
- 11-42t
- Chain
- KMC X10-1
- Brakeset
- Tektro HD-J2820
- Brake Type
- hydraulic disc
- Handlebar
- Rocky Mountain Jr
- Handlebar Rise
- 25mm
- Handlebar Width
- 640mm
- Grips
- SDG Slater JR Lock On
- Stem
- Rocky Mountain
- Stem Length
- 40mm
- Saddle
- Rocky Mountain Kids
- Seatpost
- Tranz X +RAD1.0 Adjustable Dropper
- Wheelset
- WTB KOM Team i30 TCS 2.0
- Hubs
- Shimano TC500
- Front Axle
- 15mm Boost
- Rear Axle
- 12 x 148mm Boost
- Tires
- [front] Maxxis Minion DHF 2.4 EXO, [rear] Maxxis Minion DHR II 2.3 EXO
- Tire Size
- 24in
- Pedals
- not included
- Activity
- trail
- Manufacturer Warranty
- 5 years
Cancer - P65Warnings.ca.gov