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2018 Focus

JAM C SL 27

A 27.5″ carbon frame full suspension enduro bike with ultra high-end components.
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FrameCarbon
SuspensionFull, 150mm front
ForkFox Factory Float 34
ShockFox Float DPX2 Factory
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetX01 Eagle
BrakesSRAM Guide Ultimate Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
JAM C SL 27
Other Enduro bikes
Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Reviews

Summary

The Focus Jam trail bike is praised for its lightweight carbon frame, excellent suspension performance with F.O.L.D. technology, and versatile handling that blends cross-country efficiency with trail confidence. It offers a playful and direct ride, though some reviews note inconsistencies in suspension performance and component quality.

Pros
  • Lightweight carbon frame

  • Excellent F.O.L.D. suspension technology

  • Versatile handling blending cross-country efficiency with trail confidence

  • Playful and direct ride

  • Clean and compact linkage system

Cons
  • Inconsistencies in suspension performance

  • Component quality issues

  • Press-fit bottom bracket durability concerns

Key Quotes
Add low weight to Focus’s already tasty JAM recipe and you’ve got a real treat
BikeRadar logoBikeRadar
The FOCUS JAM C is an agile beast on the trails, and it corners with clout.
Enduro Mountainbike Magazine logoEnduro Mountainbike Magazine
With 140mm of F.O.L.D. suspension technology the Jam is Focus’ most versatile trail bike.
MTBR logoMTBR

Feedback?

View all reviews

BikeRadar
Focus JAM C SL first ride review

Nov 2017 · Guy Kesteven

We’ve been massively impressed with Focus’s super-controlled, alloy-framed, SRAM Eagle-equipped JAM trail bike this year.

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MTBR
Focus Jam trail bike a departure from usual XC focus

Apr 2017 · Mtbr

Germany’s Focus is better known in the U.S. for their support of cyclocross and XC racing, but the brand is now also gunning to capture a piece of the ever-expanding trail bike market. - Mtbr.com

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Singletrack World
Focus JAM vs JAM²

Apr 2017 · Wil Barrett

Just how does the motor assisted version of the JAM compare? We rode them both head to head to find out

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Enduro Mountainbike Magazine
FOCUS JAM C SL Review – How much Fun is the New Trail Bike?

Dec 2016 · Christoph Bayer

Mountain peaks tend to be peaceful places where time stops. They’re places of reflection and a somewhat gluttonous indulgence in panoramas. But for riders, they are very rarely the destination – and they are usually the place where time only just gets started. Just take the FOCUS JAM, which values mountain peaks as the precursor […]

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Flow Mountain Bike
Flow's First Bite: Focus O1E and Focus JAM

Jun 2016

Two new bikes are on their way ; the O1E (one) a new 100mm travel 29er and the 140mm travel JAM. Both use the new F.O.L.D. suspension design. The two new bikes are also totally fresh platforms, filling the gaps between the existing Focus Raven, Spine and SAM introduced in 2015 to provide great choice from …

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Geometry
Specs
Build
Frame

MAX technology Carbon frame, PF30 BB, 148x12 mm through axle, internal cable routing, Post Mount 180 mm

BB StandardPF30, Press Fit

Fork

Fox 34 Float Factory, 110x15 mm QR, 150 mm travel

Travel150mm

Spring TypeAir

Shock

Fox Float DPX2 Factory, 200/57, hardware: shaft22,2x8 mm/body22,2x8 mm, custom tune

Bottom Bracket

PF30, press-fit

Stem

RaceFace Turbine R, aluminium, 35,0mm

Handlebar

RaceFace Next 35mm, carbon, riserbar, 760mm

Seatpost

Fox Transfer Factory 31,6mm, internal, 1by remote

TypeDropper

Groupset
Rear Derailleur

SRAM X01 Eagle, 12-speed

Crank

1x

Shifters

SRAM X01 Eagle

Brakes

SRAM Guide Ultimate, 180 mm / 180 mm

TypeSRAM Guide Ultimate Hydraulic Disc

Wheels
Rims

RaceFace Next R, 584-30, 148x12 mm / 110x15 mm

Tires

Minion DHF 2.5 3C/TR/ EXO, foldable

Rider Notes
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First added April 22

Last updated April 22

Not listed for 2,594 days