Browse product groups:

2026 Marin San Quentin Jr 20 Bike

20 01
20 01
20 02
20 01 20 02.png?VersionId=e2kvSVk7
Related:
Marin
Where To Buy
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
$1,249.00
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
Marin San Quentin Jr 20 Bike
Model Year
2026
Intended Use
Cross Country
Trail
Rider
Kids
Sizes and Geometry
One Size
View Full Geometry
Sizes Additional Info
All specifications listed are with 80mm travel fork with 40mm offset
View Full Geometry
Wheel Size
Other: 20"
Frame Material
Aluminum
Frame Material Details
Series 2 6061 aluminum
Rear Travel
Hardtail
Rear Shock
None
Fork
Manitou Machete JUNIT Sport, air spring, rebound adjust
Fork Travel
80mm
Head Tube Diameter
Tapered, 1.125" top, 1.5" bottom
Headset
FSA No.57E
Handlebar
Marin Riser, 580mm width, 30mm rise, 31.8mm clamp diameter, 19mm diameter at grips
Stem
Marin alloy, 40mm length, 31.8mm bar clamp
Grips
Marin MTB, small diameter
Brakes
Tektro J285, 2-piston
Rotors: Tektro
Brake Levers
Tektro J285, kids-specific short reach
Drivetrain
1x
Shifters
microSHIFT Acolyte, 8-speed, short reach
Front Derailleur
None
Rear Derailleur
microSHIFT Acolyte, 8-speed, super short cage, with clutch
ISCG Tabs
None
Chainguide
None
Cranks
Forged alloy, 127mm length
Chainrings
30 tooth, narrow/wide profile
Bottom Bracket
Square taper, sealed cartridge bearings
Pedals
Kids-specific nylon platform
Chain
KMC Z8, 8-speed
Cassette
microSHIFT Acolyte, 8-speed, 11-38 tooth
Rims
Marin, double wall alloy, 26mm inner width, 32 hole
Hubs
Forged aluminum, 15mm x 110mm (Boost) front, quick release rear with HG driver
Spokes
Stainless steel, 14g
Tires
Delium Vesatile, Light Construction, wire bead, 20" x 2.4"
Saddle
Marin One-Piece Saddle/Post Combo (for lower stack height)
Seatpost
Marin One-Piece Saddle/Post Combo, alloy
Seatpost Diameter
27.2mm
Seatpost Clamp
Quick release
Rear Dropout / Hub Dimensions
Quick release
Max. Tire Size
 
Bottle Cage Mounts
One inside front triangle
Colors
Yellow/Orange
Warranty
Lifetime frame; 1 year components, paint and decals
Weight
 
Miscellaneous
Internal cable routing; compatible with internally-routed dropper seatposts
Price
$1,249.00
More Info

Marin website

Review This Product
What do you think?
Where To Buy
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
$1,249.00
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.
Bikes