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2019 Marin

San Quentin 3 Frame Kit

A 700c aluminum frame crosscountry frameset.

Manufacturer Price

$419
FrameAluminum
Wheels700c
Where to Buy
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Insights
Sizing
SM

5'2" – 5'6"

MD

5'4" – 5'9"

LG

5'7" – 5'11"

XL

5'9" – 6'1"

Rider Fit Notes

None yet.

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Reviews

Summary

The Marin San Quentin trail bike is a mixed bag, offering aggressive geometry and confident descending capabilities, but with some compromises in climbing efficiency and component choices. It shines in steep, technical terrain and jumps, with a design that feels both progressive and normal. However, its performance on hard-packed trails and everyday riding can be lackluster, and some stock components may need upgrading for optimal performance.

Pros
  • Aggressive geometry for confident descending

  • Progressive sizing and geometry

  • Good for jumps and railing berms

  • Stiffness of the aluminum frame and handlebars noticeable

  • RockShox Revelation RC fork matched well for the price

Cons
  • High weight and limited gear range compromise climbing potential

  • Stock stopping setup inadequate for designed trails

  • Feeling of slight laziness and lack of drive on mellow terrain

  • Magic Mary tires too slow for everyday summer riding

  • Basic fork with a bit of trail chatter

Key Quotes
The Marin San Quentin is an exercise in determining the logical limits of how rowdy a trail you can design a modern hardtail for
BIKE Magazine logoBIKE Magazine
As soon as there’s any negative gradient, it starts to come alive.
BikeRadar logoBikeRadar
With progressive, generous and a sorted specification, we couldn’t wait to do time on the new Marin San Quentin 2.
MBR logoMBR

Feedback?

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Mountain Bike Action
Mountain Bike Action Bike Test: Marin San Quentin 3 Trail Bike

Nov 2020 · McCoy

Tough as Nails

Read Review

BikeRadar
Marin San Quentin 1 review

Oct 2019 · Tom Marvin

Compromised spec, but the descent-focused geometry starts to shine on steeper terrain

Highs
  • Aggressive geometry makes it a confident descender

  • Wide rims give tyres good volume and shape

Lows
  • High weight and limited gear range compromise climbing potential

  • Spec choice

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BIKE Magazine
Tested: Marin San Quentin 3—Machete or Kitchen Knife?

Jan 2019

What happens when a brand known for its outlandish value makes an outlandish hardtail?

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MBR
Marin San Quentin 2 review - MBR

Oct 2018 · Alan Muldoon

With progressive geometry, generous sizing and a sorted specification, we couldn’t wait to do time on the new Marin San Quentin 2.

Highs
  • Progressive sizing and geometry.

Lows
  • Needs 2.6in tyres and a dropper.

Read Review

Geometry
Specs
Build
Frame

Series 3 6061 Aluminum, Double Butted Frame, Internal Shifter & Dropper Post Routing, External Brake, 12x148mm Thru Axle, 73mm Threaded BB

BB StandardBSA, 73mm, Threaded

Bottom Bracket

BSA, 73mm, threaded

Headset

FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”

Rider Notes
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First added September 3

Last updated September 3

Not listed for 2,474 days