Marin Bobcat Trail 4

Marin

Bobcat Trail4

FrameSeries 2 6061 Aluminum, 2…SR Suntour XCM HLO-DS, 120m…
GroupsetShimano CUES 10-speedShimano CUES CS-LG300, 10…
WheelsMarin aluminum double w…MTB, 27.5/29x2.25"

The 2025-on Marin Bobcat Trail is a clear repositioning of Marin’s entry-level hardtail toward contemporary trail riding rather than old-school cross-country geometry. The key change is the updated frame layout: head angles are now 66-66.5 degrees depending on size, and chainstays are shortened to 415mm on Small and Medium frames and 430mm on Large and XL. That gives the bike a noticeably more planted front end and a more responsive rear triangle than many budget hardtails, while still keeping the Bobcat Trail in the affordable, first-real-MTB part of the market.

The frame remains Marin’s Series 2 butted and hydroformed 6061 aluminum chassis, with internal cable routing, dropper-post routing, a 68mm bottom bracket shell, and sizing/wheel options built around Marin’s mixed-wheel approach with 27.5-inch or 29-inch configurations depending on size or selection. It is designed around a 120mm fork and intended as a true trail hardtail, not a lightweight XC bike. That makes the Bobcat Trail distinctive among sub-$1,100 mountain bikes: it is aimed at riders who want modern handling and upgrade potential without stepping into the price bracket of more advanced alloy or full-suspension trail bikes.

One practical caveat is the inconsistency in Marin’s published rear dropout information, with some company materials referencing 141x9mm open dropouts while some Bobcat Trail listings mention 135mm forged dropouts. For buyers concerned about wheel compatibility or future wheel upgrades, that is something worth confirming directly on the frame or through a dealer.

Marin Bobcat Trail
Build
Size
01 / Buy

Where to get it.

No retailers stocking size Small.

Size
0 retailers · Size Small

No retailers carrying size Small right now.

02 / Specifications

Spec sheet.

Every component shipped with this build.

01Frameset
2 components
FrameSeries 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
ForkSR Suntour XCM HLO-DS, 120mm travel, hydraulic lockout, 46mm offset
02Drivetrain & brakes
10 components
Shift leversShimano CUES 10-speed
ChainKMC LG
CranksetAlloy crank, steel narrow-wide chainring, 32T
Bottom bracketSealed cartridge bearings, square taper
Front brakeTektro M280 hydraulic disc
Rear brakeTektro M280 hydraulic disc
Front rotor180mm
Rear rotor160mm
03Wheels & tires
4 components
Front wheelMarin aluminum double wall, 25mm inner, pinned joint, disc specific; Forged alloy, disc, 32H; 14g black stainless steel
Rear wheelMarin aluminum double wall, 25mm inner, pinned joint, disc specific; Forged alloy, disc, 32H; 14g black stainless steel
Front tireMTB, 27.5/29x2.25"
Rear tireMTB, 27.5/29x2.25"
04Cockpit & contact
5 components
StemMarin alloy, 31.8mm clamp, 45mm
HandlebarsMarin 31.8 riser, 12mm rise, 780mm width
SaddleMarin MTB
SeatpostMarin alloy, 30.9
Grips/TapeMarin MTB, closed end
03 / Geometry

Geometry & fit.

4 sizes published.

The Bobcat Trail’s geometry is notably progressive for an affordable hardtail. A 66.5-degree head tube angle on Small and Medium sizes, and 66 degrees on Large and XL, is substantially slacker than traditional budget XC-oriented hardtails and should give the bike more composure on steeper descents and rougher trail sections. Reach is also generous for the category at 445mm in Small, 455mm in Medium, 475mm in Large, and 495mm in XL, pointing to a roomier cockpit that suits shorter stems and a more centered descending position.

Chainstay length is size-specific, with 415mm stays on Small and Medium frames and 430mm on Large and XL. That is a thoughtful detail: the shorter rear end on smaller sizes should help preserve agility and weight distribution, while the longer rear center on bigger frames helps keep handling balanced for taller riders. Wheelbase grows from 1144mm in Small to 1230mm in XL, reinforcing stability as sizes increase. The 74.5-degree seat tube angle is moderate rather than especially steep, so climbing position should feel familiar and comfortable, though not as aggressively centered over the bottom bracket as on newer high-end trail bikes.

Reach × Stack · size Smallmm

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

740699658616575STACK ↑410446483519555REACH →UPRIGHTLONG / LOWSize Small445 · 603
01Fit geometry6 values
Stack603 mm
Reach445 mm
Top tube612 mm
Headtube length105 mm
Standover height640 mm
Seat tube length381 mm
02Component geometry3 values
Crank length170 mm
Handlebar width780 mm
Stem length45 mm
03Handling geometry7 values
Headtube angle66.5°
Seat tube angle74.5°
BB height307 mm
BB drop48 mm
Offset42 mm
Wheelbase1144 mm
Chainstay length415 mm

Which size should I buy?

Slide your height to see the recommended size. GearWise's fit algorithm works from the published stack, reach, and ETT — the brand's own recommendation may differ.

Your height
5'8"173 cm
5'0"5'5"5'10"6'3"6'7"
Recommended sizeSmallBased on stack, reach & ETT for your height · score 88/100.

Calculated from GearWise's own stack / reach / ETT algorithm — the brand's size chart may recommend a different size, and a proper bike fit beats any calculator.

04 / Other builds

The lineup.

3 builds, ranging $829 – $1,049.

The Bobcat Trail range is straightforward and price-led, with three builds: the Bobcat Trail 3 at $829, the 4 at $949, and the 5 at $1049. That places the model squarely in the gateway mountain bike category, where value and frame quality matter as much as component level. In this case, the updated frame and geometry are the main story, because they give even the lower-cost builds a more current trail-bike foundation than many similarly priced hardtails.

With only pricing provided here, the clearest takeaway is that Marin offers the same updated chassis across a relatively tight price spread, letting buyers choose how much they want to spend without leaving the platform. The Bobcat Trail 3 serves as the lowest-cost entry point, while the 5 is still modestly priced for riders who want the highest-spec version of the range. Without full component lists, the frame update is the strongest value proposition across all three models.

01
5 build
5
$1,049
02
4 build
· Currently viewing4
$949On this page
03
3 build
3
$829