Marin Bobcat Trail 3

Name: Marin Bobcat Trail 3
Brand: Marin

2021 MountainTrail Manufacturer page

Marin Bobcat Trail 3, color Gloss Bright Blue / Dark Blue/yellow/magenta

Last known price: $699

Prices shown first for United States
Fork travel: 120 mm
Wheels: 27.5″
Drivetrain: 2 × 8 22–36t / 11–34t
Gear range: 506%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 147.3–157.5
SM 157.5–165.1
MD Not informed
MD Not informed
LG 175.3–182.9
XL 182.9–190.5

Components

15 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

Series 2 6061 Aluminum, 27.5" or 29” Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts, IS Chainstay Disc Mount, Internal Housing & Dropper Post Routing Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

7 parts

Bottom bracket

Sealed Cartridge Bearings, Square Taper Not identified
Cassette
- SunRace 11–34t
Chain
- KMC Z8.3 8 speeds
Z-8
Crankset

Alloy Crank, Steel Chainrings, 36/22T Not identified
Front derailleur
- Shimano Altus
Rear derailleur
- Shimano Altus RD-M310
RD-M310
Shifters
- Shimano Altus SL-M315
SL-M315

Brakes

2 parts

Wheels and tires

4 parts

Front hub

Forged Alloy, 32H Not identified
Rear hub

Forged Alloy, 32H Not identified
Rims
- Marin
Tires

MTB, 27.5/29x2.25" Not identified

Cockpit and contact points

7 parts

Grips
- Marin
Handlebar
- Marin
Headset
- FSA NO.10
Pedals

Nylon Platform Not identified
Saddle
- Marin
Seatpost
- Marin
Stem
- Marin

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 445mm

Stack 604mm

Wheelbase 1145mm

Head angle 67.5°

Seat angle 74.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	420	435	445	445	465	480
Stackmm	594.7	599.3	604	629.3	634	638.5
Top tube lengthmm	585	601	612.5	619.5	640.8	657
Seat tube lengthmm	330	381	431	431	482	520
Head tube lengthmm	100	105	110	110	115	120
Head tube angle	67.5°	67.5°	67.5°	67°	67°	67°
Seat tube angle	74.5°	74.5°	74.5°	74.5°	74.5°	74.5°
Chainstay lengthmm	425	425	425	440	440	440
Wheelbasemm	1116.4	1133.3	1145.2	1177.4	1199.3	1216.3
Front centermm	696	713	725	744	766	783
Bottom bracket dropmm	48	48	48	61	61	61
Bottom bracket heightmm	307	307	307	311.5	311.5	311.5
Standover heightmm	639.42	659.07	705.48	714.04	744.93	774.59
Fork rakemm	44	44	44	51	51	51
Trailmm	100	100	100	95	95	95
Stack/reach ratio	1.42	1.38	1.36	1.41	1.36	1.33
Suspension and parts
Crank lengthmm	170	170	175	175	175	175
Handlebar widthmm	780	780	780	780	780	780
Stem lengthmm	45	45	45	45	45	45

Not published by the manufacturer: Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 22
Largest chainring: 36
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 17.8 in
Highest gear: 90.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2.25″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

4 measures

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

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,325 bicycles with this information
Coverage: 98.1% of the class

Lowest gear

17.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,138 bicycles with this information
Coverage: 84.2% of the class

Highest gear

90.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,138 bicycles with this information
Coverage: 84.2% of the class

Shifting

Mechanical

53 of 1,347 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,347 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.8 km/h
Highest gear: 34.5 km/h

Total gear range 506%

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: 17.8–90.0 gear inches
Class reference (p10–p90): 16.9–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2021
Lowest gear: 1138 bicycles with this information, 84.2% of the class
Highest gear: 1138 bicycles with this information, 84.2% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2021 builds
Specification	This bicycle Marin Bobcat Trail 3	Marin Bobcat Trail 4	Marin Bobcat Trail 5
Drivetrain
Front chainrings	2	2	1
Smallest chainring	22	22	32
Largest chainring	36	36	32
Rear sprockets	8	9	11
Largest sprocket	34	36	51
Lowest gear	17.8 in	16.8 in	17.3 in
Highest gear	90.0 in	90.0 in	80.0 in