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Marin

San Quentin 2

Aluminium29-inch (27.5-inch on the smaller sizes)Mountain
$1,799.99
at BikesOnline, was $2,299.99. In stock, checked 3 Nov 2026.
All Marin prices
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AluminiumFrame
◎
29-inch (27.5-inch on the smaller sizes)Wheel size
⚙
Tektro Gemini 1x11Drivetrain
◉
DiscBrakes
SizesS (27.5")M (27.5")L (27.5")XL (27.5")S (29")M (29")L (29")XL (29")Which size?

OverviewAbout the Marin San Quentin 2

The Marin San Quentin 2 is a mountain bike, built on an aluminium frame, listed at $1,799.99 at BikesOnline. An off-road bike for trails, with grippy tyres and trail-ready geometry.

aluminiumdisc brakehardtailtrail

How it comparesThe San Quentin 2 against similarly priced bikes

  • At $1,799.99 it costs less than 73% of the 223 mountain bikes we list.
  • Head angle: 64.0 degrees, slacker, so steadier on descents than the middle of similarly priced hardtail mountain bikes (65.0 degrees).
  • Front travel: 140 mm, more than the middle of similarly priced hardtail mountain bikes (130 mm).
  • Lowest gear ratio: 0.64, about the same as similarly priced hardtail mountain bikes (middle 0.63).
  • Gears at the back: 11-speed, fewer than the middle of similarly priced hardtail mountain bikes (12-speed).
  • Stock tyre width: 64 mm, wider than the middle of similarly priced hardtail mountain bikes (61 mm).
  • It comes with a dropper post; 12 of 13 similarly priced hardtail mountain bikes do.

Closest alternatives on price

Compare the San Quentin 2 with the two closest side by side

Compared with the 15 similar mountain bikes on BikeFinder priced $1,250 to $2,450, using each bike's published specs and the price shown on its page.

SizingWhat size San Quentin 2 do I need?

cm

Enter your height to see the size Marin recommends.

Marin San Quentin 2 size chart
SizeRider heightIn feet
S (27.5")157 to 165 cm5 ft 2 in to 5 ft 5 in
M (27.5")165 to 173 cm5 ft 5 in to 5 ft 8 in
L (27.5")173 to 178 cm5 ft 8 in to 5 ft 10 in
XL (27.5")178 to 183 cm5 ft 10 in to 6 ft 0 in
S (29")157 to 165 cm5 ft 2 in to 5 ft 5 in
M (29")165 to 173 cm5 ft 5 in to 5 ft 8 in
L (29")173 to 178 cm5 ft 8 in to 5 ft 10 in
XL (29")178 to 183 cm5 ft 10 in to 6 ft 0 in

Rider heights from Marin's size chart. Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.

SpecificationsWhat we know

Brand
Marin
Category
Mountain
Frame
Aluminium
Wheel size
29-inch (27.5-inch on the smaller sizes)
Drivetrain
Tektro Gemini 1x11
Brakes
Disc
Frame sizes
S (27.5"), M (27.5"), L (27.5"), XL (27.5"), S (29"), M (29"), L (29"), XL (29")
Price
$1,799.99 at BikesOnline, was $2,299.99. In stock, checked 3 Nov 2026.

Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.

GeometrySize M (29 inch)

REACH450STACK636WHEELBASE1,212CHAINSTAY43064.0°77.0°
Marin San Quentin 2, size M (29 inch). Published geometry, drawn to scale.
Stack
636 mm
Reach
450 mm
Stack/reach
1.41
Head angle
64 deg
Seat angle
77 deg
Wheelbase
1212 mm
Chainstay
430 mm
BB drop
50 mm
Standover
683 mm
Fork rake
44 mm

GearingRatios

0.64lowest (climbing)
2.91highest (speed)
Very low climbing gear

Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.

Drivetrain & buildFull specification

Groupset
Tektro Gemini
Shifting
Mechanical
Drive
1x
Speeds
11
Crank
Marin Forged Alloy, Boost Spacing
Chainrings
32
Cassette
Tektro CS-M5100-11, 11-Speed, 11-50T
Rear derailleur
Tektro Gemini, RD-5100-L, 11-Speed, Long Cage, With Clutch
Brakes
Tektro M535 Hydraulic, 4-Piston
Rotors
180mm
Wheelset
Marin Aluminium Double Wall, Disc Specific, 29mm Inner, Pinned Joint, 32H, Tubeless Ready
Rim internal width
29 mm
Stock tyre
29x2.5
Tubeless
Yes
BB standard
Threaded
Seatpost
TranzX YSP18 Dropper Post, Size S: 120mm Travel, Size M: 150mm, Size L to XL: 170mm, 30.9mm
Cockpit
Marin 3D Forged Alloy, 35mm / Marin Mini-Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5 deg Up, 9 deg Back
Saddle
Marin Speed Concept
UDH
Yes

SuspensionMTB detail

Front travel
140 mm
Fork
RockShox 35 Silver R Coil
Wheel config
29
Dropper
TranzX YSP18 Dropper Post
Dropper travel
150 mm
Discipline
Trail
Suspension
hardtail

Bike DNAWhat the numbers say

Steering
A 64 deg head angle points to very slack, built for steep descending.
Climbing
Lowest ratio 0.64 is a very low climbing gear for steep or loaded climbs.

Derived from the published geometry and gearing above. It describes the numbers, not a ride test.

BikeFinder Data Profile: geometry and specification researched from published sources (BikesOnline product page (specification list and geometry table)), verified 2026-11-03. This is a specification analysis, not a physical ride review.

Where to buyStockist

BikesOnline
In stock, checked 3 Nov 2026
$1,799.99
Check size and stock →

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