Compare/Marin San Quentin vs Trek Roscoe

Head to headMountain

San Quentin

Roscoe

Marin

Trek

Starting price

San Quentin$1,049

Roscoe—

Claimed weight

San Quentin—

Roscoe—

Tire clearance

San Quentin—

Roscoe—

Builds available

San Quentin3

Roscoe0

01 / Overview

Overview

03 / Specifications

Where the builds differ.

Comparing our editor's-pick builds side-by-side. Winners highlighted row-by-row — lower price and weight, and the better-spec component, each mark a point.

01Frameset

San Quentin

3 · $1,999

Roscoe

Claimed weight

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Frame material

Series 3 6061 Aluminum, double butted, internal cable routing, 12x148mm thru-axle, 73mm threaded BB

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Fork

Marzocchi Bomber Z2, 110x15mm Boost spacing, 140mm travel, Kabolt axle

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Tire clearance

—

02Groupset

Shift levers

Shimano Deore, 12-speed, SL-6100IR

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Rear derailleur

Shimano Deore, 12-speed, SGS

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Cassette

Sunrace, 12-speed, MicroSpline, 10-51T

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Crankset

FSA Comet, modular 1x, 32T direct-mount chainring, MegaTooth technology, Boost spacing

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Brakes

Tektro Slate EVO, 4-piston hydraulic disc (resin pads)

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03Wheelset

Front wheel

Marin aluminum double wall, disc specific, 29mm inner width, sleeved joint, 32H, tubeless compatible; Shimano HF-MT410B, 110x15mm, 32H; 14g black stainless steel

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Rear wheel

Marin aluminum double wall, disc specific, 29mm inner width, sleeved joint, 32H, tubeless compatible; Shimano HB-MT410B, 148x12mm, 32H, MicroSpline freehub body; 14g black stainless steel

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Front tire

Maxxis Assegai, 29x2.5, MaxxTerra, EXO casing, tubeless compatible

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04Cockpit

Handlebar / stem

Marin Mini-Riser, 6061 double-butted aluminum, 780mm width, 28mm rise, 5° up, 9° back

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Saddle

Marin Speed Concept

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Seatpost

TranzX YSP23JL dropper, 30.9mm, 1x remote (S: 125mm / M: 150mm / L-XL: 170mm travel)

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03.1

Build variants & pricing

San Quentin · 3 builds$1,049 – $1,999

Shimano Deore · Marin aluminum double wall

$1,999

Shimano Deore 11-speed · Marin aluminum double wall

$1,599From$1,299

MicroShift RD-M9195M · Marin aluminum double wall

$1,049From$999

Roscoe · 0 builds

04 / Geometry

How they fit, how they steer.

Reach × Stack · size —mm

Where the handlebar sits relative to the bottom bracket — the single most important fit pair.

San Quentin

Roscoe

size —

Reach—

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Stack—

——

Head tube angle—

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Trail—

——

Chainstay length—

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Wheelbase—

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Top tube (effective)—

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04.1

Which size should I buy?

Your height

5'8"173 cm

5'0"5'5"5'10"6'3"6'7"

San Quentin

5'6" – 5'10"

Fits riders in this height range.

Roscoe

—

Fits riders in this height range.

→These are starting points. Flexibility, riding style, and preferred position all shift the answer — if you’re between sizes, a professional fit beats a chart.

05 / Reviews