Collection
Collect free from our Ashby-de-la-Zouch showroom. Bikes are fully inspected and safety-checked before handover.
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Overview
About this bike
Developed in conjunction with freeride legend Matt Jones and taking its name from the most rough and tumble piece of Marin County, the San Quentin collection lives up to the notoriety of the namesake maximum security California State Prison. Blending the strength an style of our Alcatraz dirt jump frame with the natural trail savvy of the best hardtails, the San Quentin family of aggressive trail hardtails is the perfect mash-up for the modern trail rider.
- Series 3 6061 Aluminum, Double Butted Frame, Internal Cable Routing, 12x148mm Thru-Axle, 73mm Threaded BB
- Marzocchi Bomber Z2, 110x15mm Boost Spacing, 140mm Travel, Kabolt Axle
- FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2�
- Marin 3D Forged Alloy, 35mm�
Specifications
- Frame
- Series 3 6061 Aluminum, Double Butted Frame, Internal Cable Routing, 12x148mm Thru-Axle, 73mm Threaded BB
Why you'll love it
Series 3 6061 Aluminum, Double Butted Frame, Internal Cable Routing, 12x148mm Thru-Axle, 73mm Threaded BB
Marzocchi Bomber Z2, 110x15mm Boost Spacing, 140mm Travel, Kabolt Axle
FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2�
Marin 3D Forged Alloy, 35mm�
Who it's for
Ideal for 1
Mountain riding
Ideal for 2
Weekend trail rides and forest loops
Ideal for 3
Building skills at trail centres
Key technology & features
Frame
Aluminium
Groupset
Shimano Deore
Travel
140mm fork
Wheels
27.5"
Suspension
Hardtail
Feature
Marzocchi Bomber Z2, 110x15mm Boost Spacing, 140mm Travel, Kabolt Axle
Built to ride
Marin Mountain performance
Premium bikes, expert setup, and Midlands riding from Stretton Bikes in Ashby-de-la-Zouch.
Official Marin size guide for San Quentin 3 27.5 W White Black
- Size S
- Rider height 155–168 cm
- Size M
- Rider height 165–178 cm
- Size L
- Rider height 175–188 cm
- Size XL
- Rider height 185–193 cm
Sizing
Find Your Perfect Size
Choosing the correct frame size makes a huge difference to comfort, confidence and performance. Enter your height below to see the official manufacturer recommendation.
Available sizes: S, MColours: Gloss White / Black / Red
Your height
5'9"
140 cm210 cm
Recommended frame size
M and L
✓
Suitable sizes
M and L
M (165–178 cm) — smaller size for a more playful, agile ride.
L (175–188 cm) — larger size for greater stability and confidence at speed.
Confidence
Between Sizes
View official Marin size chart PDF →
View Full Geometry+
Reach, stack, seat tube, head angle, chainstay, wheelbase, BB drop, standover, effective top tube, and seat angle measurements.
View geometry chart on manufacturer websiteStill unsure?
We build and size bikes every day. Call us, email us or visit our Ashby-de-la-Zouch showroom and we'll help you choose the perfect size.
Get Sizing AdviceDelivery & collection
Delivery
- Free delivery on bikes over £1,000.
- Bikes under £1,000: £60 delivery.
- Delivery available to England and Wales only.
Why buy from Stretton Bikes
Authorised dealer for Mondraker, Basso and Marin
Showroom and workshop in Ashby-de-la-Zouch, serving the Midlands
Professional bike fitting and independent advice
Cycle to Work and finance enquiries handled personally
Every bike safety-checked before handover
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FAQs
This bike is available to order. Lead times vary by brand and size — we will confirm when you enquire.
Product details
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