2026 Marin Bear Valley 20
Marin
€607.22
Marin's Bear Valley 20 trail bike is ready to shred! Built around a lightweight aluminum frame with proper MTB geometry, a series 1 aluminum fork, fast rolling yet grippy tires, MicroSHIFT Acolyte 1 x 8 speed wide range transmission with clutch enabled rear derailleur, Tektro hydraulic disc brakes with kid specific, close reach levers, and finished off with a myriad of Marin's own kid specific components.
The Bear Valley bike really is one of our most focused and thought through kids trail bikes in the range.
Technologies

MicroSHIFT 1 x 8 Wide Range Transmission
Lightweight Aluminum Frame
Series 1 Aluminum Fork
- Frame:
- Series 2 Lightweight Aluminum MTB, Low Standover, 20 Wheels, Replaceable Derailleur Hanger, Disc Brake"
- Rim:
- Aluminum, Double Wall
- Hub Rear:
- Forged Aluminum Alloy, 28H
- Hub Front:
- Forged Aluminum Alloy, 28H
- Spokes:
- 14g Stainless Steel
- Tires:
- Kenda, Booster, 24x2.4, Wire Bead"
- Derailleur Rear:
- MicroSHIFT Acolyte, 8-Speed, Super Short Cage, Clutch
- Shift Lever:
- MicroSHIFT Acolyte, Short-Reach, 8-Speed
- Crankset:
- Forged Alloy, 30T, 115mm, Ring Guard
- Bottom Bracket:
- Sealed Cartridge Bearings, Square Taper
- Chain:
- KMC 8-Speed
- Cassette:
- MicroSHIFT Acolyte, 8-Speed, 11-38T
- Brakes Front:
- Tektro HD-J285 Kid's Specific Hydraulic Disc
- Brakes Rear:
- Tektro HD-J285 Kid's Specific Hydraulic Disc
- Brake Levers:
- Hydraulic Kid's Specific Short Reach Alloy Lever
- Handlebar:
- Marin Riser, 50mm Rise, 580mm Width, 19mm OD Grip Section
- Stem:
- Alloy, 45mm
- Grips:
- Single Densitiy, Thin Diameter Grip
- Headset:
- Threadless
- Seatpost:
- Aluminum, 27.2mm, Integrated Saddle/Post
- Saddle:
- Marin 24 Integrated Saddle/Post"
- Fork:
- Series 2 Aluminum MTB, Disc Brake
- Pedals:
- Kids Specific Nylon Pedal