San Quentin 2 27.5 2026

Marin's San Quentin remains one of the best hardtail mountain bikes on the market. 

Blending dirt-jump and trail DNA, the San Quentin is a hardtail mountain bike for those looking to get wild in the local woods.

SERIES 3 ALUMINUM FRAME: A light and strong alloy frame with advanced tube forming, upgraded dropouts, post mount disc tabs, full internal cable routing, and a boost 148mm thru-axle

DIRT JUMP INSPIRED FRAME STYLE: Taking cues from the Alcatraz, the San Quentin line up provides all the benefits of the DJ style with massive stand over, slick frame tubes, and a sexy paint job.

MODERN TRAIL GEOMETRY: The slack head tube angle paired with a steep seat tube angle create a ride that will fly uphill with perfect front wheel precision but then descend like it’s on rails. The balanced rider position thanks to the steep seat tube puts your weight between the wheels for impressive climbing and handling on flats, while the slack front end and short rear centre help to pull you through the rough descents and corners with an intuitive feel.

SIZING -

• S: 5'2"-5'5"
• M: 5'5"-5'8"

The San Quentin 2 27.5" is only available in sizes S and M, please see the 29" wheel version for sizes M, L and XL - HERE

Specifications::San Quentin 2 27.5"

• Discipline: Trail/Dirt-Jump

• Material: Aluminium

• Front Travel: 140mm

• Rear Travel: Hardtail

• Wheel Size: 27.5"

• Warranty: 5 Years (frame)

FRAME - All New Series 3 6061 Aluminium, Double Butted Frame, Internal Cable Routing, 12x148mm Thru-Axle, 73mm Threaded BB
FRONT FORK - X-Fusion Slide Boost RC, 140mm Travel, Compression and Rebound Adjustment, 110x15mm Thru Axle, 44mm Offset
RIMS - Marin Aluminium Double Wall, Disc Specific, 29mm Inner, Pinned Joint, 32H, Tubeless Compatible
HUB, REAR - Shimano HF-MT400B, 148x12, Disc, Standard Freehub Body
HUB, FRONT - Shimano HF-MT400B, 110x15mm, Disc
SPOKE, NIPPLES - 14g Black Stainless Steel
TIRES - Delium Vesatile, All-Around Construction, 2.5", Wire-Bead Tubeless
REAR MECH- Tektro RD-5100-L, Long Cage, Clutch
SHIFT LEVER - Tektro, SL M5100-11R, 11-Speed
CRANKSET - Marin Forged Alloy, Integrated Steel 32T Narrow Wide Chainring, Boost Spacing
BB - External Sealed Cartridge Bearing
CHAIN - Shimano CN-LG500
CASSETTE - Tektro CS-M5100-11, 11-Speed, 11-50T
BRAKES - Tektro M535 4-Piston Hydraulic, 180mm Rotor
HANDLEBAR - Marin Mini-Riser, 6061 Double Butted Aluminium, 780mm Width, 28mm Rise, 5º Up, 9º Back
STEM - Marin 3D Forged Alloy, 35mm
GRIPS - Marin Grizzly Lock On
HEADSET - FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
SEATPOST - TranzX, YSP18, 1x Remote, Size S 125mm Travel, Size M-XL 150mm Travel, 30.9mm
SADDLE - Marin Speed Concept
PEDALS - Nylon Platform