YT Industries Jeffsy 27 CF Pro

Name: YT Industries Jeffsy 27 CF Pro
Brand: YT Industries

2019 MountainEnduro Manufacturer page

Last known price: $3,999

Prices shown first for United States
Travel: 150 / 150 mm Fork / rear shock
Wheels: 27.5″
Drivetrain: 1 × 12 34t / 10–50t
Gear range: 500%
Weight: 12.9 kg 28.4 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

21 of 24 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

JEFFSY CARBON 27,5" high modular carbonfiber frame, V4L Virtual 4-Link rear suspension, 148x12mm DT Swiss QR Thru axle, down tube/seat stay/chain stay protection Not identified

Suspension

2 parts

Drivetrain

7 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

7 parts

Grips
- ODI
Handlebar
- Race Face Turbine
Headset
- Acros
AZX-203
Pedals

included / inklusive The included pedals were not made for demanding trails or racing. That is why we also offer you quality pedals at an attractive price in the shopping cart. Not identified
Saddle
- SDG
Seatpost
- e*thirteen
Stem
- Race Face Turbine R 35

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 LG

Table

Reach 465mm

Stack 614mm

Wheelbase 1212mm

Head angle 66.0°

Seat angle 76.5°

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 Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	425	445	465	485	505
Stackmm	596	605	614	623	632
Top tube lengthmm	566	589	612	635	658
Seat tube lengthmm	395	415	435	460	485
Head tube lengthmm	110	120	130	140	150
Head tube angle	66°	66°	66°	66°	66°
Seat tube angle	76.5°	76.5°	76.5°	76.5°	76.5°
Chainstay lengthmm	432	432	432	437	437
Wheelbasemm	1164	1188	1212	1241	1265
Front centermm	732	756	780	804	828
Bottom bracket dropmm	8	8	8	8	8
Bottom bracket heightmm	350	350	350	350	350
Fork rakemm	41	41	41	41	41
Trailmm	113	113	113	113	113
Stack/reach ratio	1.40	1.36	1.32	1.29	1.25

Not published by the manufacturer: Standover height, 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: Carbon
Bicycle weight: 12.9 kg

28.4 lb

Suspension

Suspension configuration: Full suspension
Front travel: 150 mm
Rear travel: 150 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 50
Lowest gear: 18.7 in
Highest gear: 93.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Tire width: 2.35″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

5 measures

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

Front travel

150 mm

This value is below the central range for this class.

Cohort: Mountain / Enduro Model year: 2019
Sample: 626 bicycles with this information
Coverage: 98.7% of the class

Rear travel

150 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2019
Sample: 527 bicycles with this information
Coverage: 83.1% of the class

Lowest gear

18.7 gear inches

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2019
Sample: 571 bicycles with this information
Coverage: 90.0% of the class

Highest gear

93.5 gear inches

This value is above the central range for this class.

Cohort: Mountain / Enduro Model year: 2019
Sample: 571 bicycles with this information
Coverage: 90.0% of the class

Shifting

Mechanical

18 of 634 bicycles with this information use electronic shifting.

Cohort: Mountain / Enduro Model year: 2019
Sample: 634 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.2 km/h
Highest gear: 35.8 km/h

Total gear range 500%

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: 18.7–93.5 gear inches
Class reference (p10–p90): 16.5–92.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Enduro Model year: 2019
Lowest gear: 571 bicycles with this information, 90.0% of the class
Highest gear: 571 bicycles with this information, 90.0% 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 2019 builds
Specification	This bicycle YT Industries Jeffsy 27 CF Pro	YT Industries Jeffsy 27 AL Base	YT Industries Jeffsy 27 CF Comp	YT Industries Jeffsy 27 CF Pro Race	YT Industries Jeffsy 29 AL Base	YT Industries Jeffsy 29 CF Comp
Frame
Frame material	Carbon	Aluminum	Carbon	Carbon	Aluminum	Carbon
Bicycle weight	12.9 kg	13.8 kg	13.3 kg	12.7 kg	13.9 kg	13.4 kg
Suspension
Front travel	150 mm	150 mm	150 mm	160 mm	140 mm	140 mm
Drivetrain
Smallest chainring	34	34	32	32	34	32
Largest chainring	34	34	32	32	34	32
Rear sprockets	12	12	11	11	12	11
Smallest sprocket	10	11	9	9	11	9
Largest sprocket	50	50	46	46	50	46
Lowest gear	18.7 in	18.7 in	19.1 in	19.1 in	19.7 in	20.2 in
Highest gear	93.5 in	85.0 in	97.8 in	97.8 in	89.6 in	103.1 in
Other specifications
Tire width	2.35″	2.4″	2.35″	2.35″	2.4″	2.35″
Rear travel	150 mm	150 mm	150 mm	160 mm	140 mm	140 mm
Wheel material	Aluminum	Aluminum	Aluminum	Carbon	Aluminum	Aluminum
Wheel size	27.5″	27.5″	27.5″	27.5″	29″	29″
Fork spring	Not informed	Air	Air	Air	Air	Air
Bottom bracket standard	Not informed	Not informed	BB86/BB92	BB86/BB92	Not informed	BB86/BB92

Changes since 2018
Specification	2018 YT Industries Jeffsy 27 CF Pro	This bicycle YT Industries Jeffsy 27 CF Pro
Frame
Bicycle weight	12.47 kg	12.9 kg
Drivetrain
Smallest chainring	32	34
Largest chainring	32	34
Rear sprockets	11	12
Smallest sprocket	9	10
Largest sprocket	46	50
Lowest gear	19.1 in	18.7 in
Highest gear	97.8 in	93.5 in
Other specifications
Bottom bracket standard	BB86/BB92	Not informed
Fork spring	Air	Not informed