Velopedia Bicycle Archive

2025 Marin San Quentin 3 Frame Kit

Original specifications: 27.5; 29 wheels · geometry for 4 published sizes.

Share owner experience

At a glance

Model year: 2025
Category: Mountain
Original MSRP: $629.00
Sizes: S, M, L, XL
Colors: Purple Fade
Geometry: 4 manufacturer sizes
In this record: 4 specifications · archived image · original MSRP · geometry
Archive ID: 900000514

Learn more about Marin →

Original buildAluminum · 27.5; 29

Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

SMLXL

Published colors

Purple Fade

Frameset

Frame Construction	Series 3 6061 Aluminum, Double Butted, Internal Cable Routing, 12x148mm Thru-Axle, 73mm Threaded BB
Frame Material	Aluminum

Drivetrain

BB Shell Width	73 mm

Wheels & Tires

Wheel Size	27.5; 29

Geometry

4 sizes · 16 measurements

Frame measurements by size.

Measurement	S	M	L	XL
Seat tube	310 mm	340 mm	410 mm	420 mm
Effective top tube	565.9 mm	594.9 mm	620.77 mm	651.81 mm
Head tube	110 mm	115 mm	125 mm	130 mm
Head-tube angle	64°	64°	64°	64°
Seat-tube angle	77°	77°	77°	77°
Chainstay / rear center	425 mm	425 mm	430 mm	430 mm
Wheelbase	1176 mm	1206.2 mm	1232 mm	1264.57 mm
Bottom-bracket drop	50 mm	50 mm	50 mm	50 mm
Bottom-bracket height	316 mm	316 mm	327 mm	327 mm
Reach	422 mm	450 mm	470 mm	500 mm
Stack	623.4 mm	627.9 mm	653.05 mm	657.54 mm
Standover height	628.1 mm	657 mm	688 mm	695 mm
Fork offset / rake	47 mm	47 mm	47 mm	47 mm
Crank length	170 mm	170 mm	170 mm	170 mm
Stem length	45 mm	45 mm	45 mm	45 mm
Handlebar width	780 mm	780 mm	780 mm	780 mm

Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.

Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.

This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held up over time. Velopedia reviews every contribution before publication.

Display name Required Email address Required · private Ownership Required When or how long you owned it Required Frame size Required Primary type of riding Required Rider height Optional

Overall owner experience Required · at least 120 characters0 of 120 minimum characters Would you own one again? Optional

Add fit, maintenance and buyer detailsOptional · five additional fields

Fit and sizing observations Optional Long-term strengths Optional Problems or recurring maintenance Optional Parts replaced or upgraded Optional What a used buyer should inspect Optional

Your contribution goes directly to Velopedia’s private review queue. We’ll email an optional confirmation link plus a private edit and withdrawal link, but you do not need to confirm your email before an administrator can review or approve the submission.

Already contributed? Send me a fresh private edit link

For privacy, Velopedia shows the same confirmation whether or not an experience exists.

Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.