Velopedia Bicycle Archive

2025 Marin Bolinas Ridge 2 ST

Original specifications: 27.5" wheels · geometry for 3 published sizes.

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At a glance

Archive #900000527
Model year
2025
Category
Mountain
Original MSRP
$699.00
Sizes
XS, S, M
Colors
Grey
Geometry
3 manufacturer sizes
In this record
23 specifications · 4 archived images · original MSRP · geometry
Campaign
Original buildAluminum · 27.5"

Manufacturer catalog

Published sizes and colors

3 sizes · 1 color

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

Published sizes

XSSM

Published colors

Grey

Frameset

Frame ConstructionSeries 1 6061 Aluminum, 27.5”/29" Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes
Frame MaterialAluminum
ForkSR Suntour XCM DS, 100mm Travel, Preload Adjustment, 46mm Offset

Drivetrain

ShiftersShimano Altus 1x8-Speed
Rear DerailleurShimano Essa, 8-Speed
CranksetAlloy Crank, Steel Narrow/Wide Chainring, 32
Bottom BracketSealed Cartridge Bearings, Square Taper
BB Shell Width68 mm
CassetteShimano 8-Speed, 11-45T
ChainKMC Z8
PedalsNylon Platform

Brakes

Brakes(F) Tektro M280 Hydraulic Disc, 160mm Rotor / (R) Tektro M280 Hydraulic Disc, 160mm Rotor; Levers: Tektro Hydraulic

Cockpit & Contact Points

HeadsetFSA No.10-P
HandlebarMarin 31.8 Riser, 12mm Rise, 780mm Width
StemMarin Alloy, 31.8mm, 45mm
SaddleMarin MTB
SeatpostMarin Alloy, 27.2mm

Wheels & Tires

Hubs(F) Forged Alloy, Disc, 32H / (R) Forged Alloy, Disc, 32H
RimsMarin, Double Wall Alloy
SpokesBlack Stainless Steel
Front TireMTB, 27.5/29x2.25"
Rear TireMTB, 27.5/29x2.25"
Wheel Size27.5"

Geometry

3 sizes · 16 measurements

Frame measurements by size.

All geometry measurements3 sizes · 16 measurements
MeasurementXSSM
Seat tube330 mm381 mm431 mm
Effective top tube583 mm599 mm610 mm
Head tube100 mm105 mm110 mm
Head-tube angle67.5°67.5°67.5°
Seat-tube angle74.5°74.5°74.5°
Chainstay / rear center438 mm438 mm438 mm
Wheelbase1124 mm1141 mm1153 mm
Bottom-bracket drop48 mm48 mm48 mm
Bottom-bracket height307 mm307 mm307 mm
Reach420 mm435 mm445 mm
Stack586 mm592 mm596 mm
Standover height514 mm515 mm568 mm
Fork offset / rake42 mm42 mm42 mm
Crank length170 mm170 mm170 mm
Stem length45 mm45 mm45 mm
Handlebar width740 mm740 mm740 mm

Dimensions as recorded.

Gearing

Original gearing is incomplete. Enter your setup to calculate ratios and cadence speeds.

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
KMC Z8
Retailer offers
Seatpost · Original
Marin Alloy

27.2mm

Retailer offers
Cassette · Original
Shimano 8-Speed

11-45T

More parts (3)Fewer parts
Rear derailleur · Original
Shimano Essa

8-Speed

Shifters · Original
Shimano Altus 1x8-Speed
Headset · Original
FSA No.10-P

Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.

Parts and service referenceQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
MTB, 27.5/29x2.25"
Rear tire
MTB, 27.5/29x2.25"
Drivetrain
8-speed
Seatpost diameter
27.2 mm
Bottom bracket / shell
Sealed Cartridge Bearings, Square Taper · 68 mm
Equipment inspection checks 11 checks based on 6 archived component groups Open equipment checksClose equipment checks
0 of 11 checked Progress stays in this browser for this record.

Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.

Full used-bike inspection guide →

Archived: Frame: Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes · Fork: SR Suntour XCM DS, 100mm Travel, Preload Adjustment, 46mm Offset

Archived: Fork: SR Suntour XCM DS, 100mm Travel, Preload Adjustment, 46mm Offset

Archived: Shifters: Shimano Altus 1x8-Speed · Rear derailleur: Shimano Essa, 8-Speed · Crankset: Alloy Crank, Steel Narrow/Wide Chainring, 32 · Bottom bracket: Sealed Cartridge Bearings, Square Taper · Cassette: Shimano 8-Speed, 11-45T · Chain: KMC Z8

Archived: Brakes: (F) Tektro M280 Hydraulic Disc, 160mm Rotor / (R) Tektro M280 Hydraulic Disc, 160mm Rotor; Levers: Tektro Hydraulic

Archived: Wheel size: 27.5" · Rims: Marin, Double Wall Alloy · Hubs: (F) Forged Alloy, Disc, 32H / (R) Forged Alloy, Disc, 32H · Front tire: MTB, 27.5/29x2.25" · Rear tire: MTB, 27.5/29x2.25"

Controls and contact points

Archived: Headset: FSA No.10-P · Handlebar: Marin 31.8 Riser, 12mm Rise, 780mm Width · Stem: Marin Alloy, 31.8mm, 45mm · Seatpost: Marin Alloy, 27.2mm · Saddle: Marin MTB · Pedals: Nylon Platform

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Gallery4 images

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Campaign

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

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