Marin Muirwoods 29er

2015 UrbanCommuter Manufacturer page

Suspension: Rigid
Wheels: 29″
Drivetrain: 3 × 8 28–48t / 11–32t
Gear range: 499%
Frame: Steel
Brakes: Hydraulic disc

Sizes

Size guide

15"
17"
19"
20.5"
22"

The manufacturer did not publish rider heights for these sizes.

Components

17 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Double Butted Cromoly 29er with Edge II Tubing with Internal Headtube, Double Butted E4 Anti-Flex Seat and Chain Stays Not identified

Suspension

1 part

Fork

Straight Blade Rigid Steel with CrMo Steer, 1 1/8” Integrated Crown Not identified

Drivetrain

7 parts

Bottom bracket

Sealed Cartridge Not identified
Cassette
- Shimano CS-HG31 8 speeds
CS-HG31
Chain
- KMC
Crankset
- SR Suntour 48/38/28t
Front derailleur
- Shimano Altus
Rear derailleur
- Shimano Alivio RD-M3100 9 speeds
RD-M3100
Shifters
- Shimano Acera

Brakes

2 parts

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Grips
- Marin
Handlebar

Double Butted Flat Top, 6061 Alloy, OS-31.8mm, 700mm Wide Not identified

OS-31
Headset
- FSA
Pedals

Full Alloy Sport Flat Not identified
Saddle
- Marin
Seatpost
- Marin
Stem
- Marin

Sizes and geometry

5 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 19"

Table

Geometry diagram unavailable

The drawing needs reach and stack, which the manufacturer did not publish. Available facts remain in the table.

Size

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	575	590	605	615	630
Seat tube lengthmm	381	431.8	482.6	520.7	558.8
Head tube lengthmm	123	123	133	143	163
Head tube angle	71°	72°	72.5°	72.5°	72.5°
Seat tube angle	74°	74°	73.5°	73.5°	73.5°
Chainstay lengthmm	445	445	445	445	445
Wheelbasemm	1071	1076	1081	1091	1106
Front centermm	635	640	645	655	670
Bottom bracket dropmm	70	70	70	70	70
Bottom bracket heightmm	312	312	312	312	312
Standover heightmm	743	778	810	835	863
Fork rakemm	45	45	45	45	45

Not published by the manufacturer: Reach, Stack, Trail, Stack/reach ratio, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Steel
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 28
Largest chainring: 48
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 25.4 in
Highest gear: 126.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 1.6″
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

25.4 gear inches

This value is within the central range for this class.

Cohort: Urban / Commuter Model year: 2015
Sample: 68 bicycles with this information
Coverage: 78.1% of the class

Highest gear

126.6 gear inches

This value is within the central range for this class.

Cohort: Urban / Commuter Model year: 2015
Sample: 68 bicycles with this information
Coverage: 78.1% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.7 km/h
Highest gear: 48.5 km/h

Total gear range 499%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 25.4–126.6 gear inches
Class reference (p10–p90): 22.6–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Commuter Model year: 2015
Lowest gear: 68 bicycles with this information, 78.1% of the class
Highest gear: 68 bicycles with this information, 78.1% of the class