YT Industries Jeffsy MX UNCAGED 13 2025

Bike details

Overview

Key information split into simple groups.

Bike summary

Category
- Mountain
- |
- Trail
Frame Aluminum
Travel Front 150mm
Travel Rear 145mm
Fork Marzocchi Bomber Z1
Groupset GX Eagle
Suspension Full
Drivetrain 1 × 12
Brakes SRAM G2 Ultimate Hydraulic Disc

Sizing

Recommended size guide.

SM Low
153cm - 166cm
SM High
153cm - 166cm
MD Low
162cm - 176cm
MD High
162cm - 176cm
LG Low
172cm - 185cm
LG High
172cm - 185cm
XL High
181cm - 194cm
XL Low
181cm - 194cm
XXL High
190cm - 203cm
XXL Low
190cm - 203cm

Parts list

Components

Main components, grouped by system.

Bike components

Frame

Suspension Fork

MARZOCCHI BOMBER Z1

Rear Shock

MARZOCCHI BOMBER AIR

Drivetrain

Rear Derailleur

SRAM GX EAGLE

Shift Levers

SRAM GX EAGLE

Cassette

SRAM GX EAGLE

Crank

SRAM GX EAGLE

Bottom Bracket

SRAM DUB BSA

Wheels

Rims

CRANKBROTHERS SYNTHESIS ENDURO 2 ALLOY - SILVER OE

Tires

FRONT: MAXXIS DHF I REAR: MAXXIS MINION DHR II

Brakes

SRAM G2 ULTIMATE

Cockpit

Stem

RENTHAL APEX 35

Handlebar

RENTHAL FATBAR 35

Grips

ODI VANS V2.1

Headset

CANE CREEK SERIES 40

Seat

Saddle

SDG BEL AIR 3.0

Seatpost

YT POSTMAN V2

Fit data

Geometry

Numbers for sizing and ride feel.

Size	SM Low	SM High	MD Low	MD High	LG Low	LG High	XL High	XL Low	XXL High	XXL Low
Stack Reach Ratio	1.376 mm	1.409 mm	1.331 mm	1.363 mm	1.293 mm	1.32 mm	1.281 mm	1.255 mm	1.247 mm	1.221 mm
Bottom Bracket Height	351 mm	343 mm	351 mm	343 mm	351 mm	343 mm	343 mm	351 mm	343 mm	351 mm
Front Center	755 mm	759 mm	779 mm	782 mm	802 mm	806 mm	829 mm	826 mm	852 mm	849 mm
Rake	44 mm	48 mm	45 mm	48 mm	45 mm	48 mm	48 mm	46 mm	47 mm	46 mm
Trail	122 mm	122 mm	120 mm	122 mm	120 mm	122 mm	122 mm	119 mm	123 mm	119 mm
Stack	608 mm	613 mm	615 mm	620 mm	622 mm	627 mm	634 mm	629 mm	642 mm	636 mm
Reach	442 mm	435 mm	462 mm	455 mm	481 mm	475 mm	495 mm	501 mm	515 mm	521 mm
Top Tube Length	562 mm	578 mm	585 mm	593 mm	607 mm	609 mm	627 mm	630 mm	645 mm	652 mm
Seat Tube Angle	77.5 °	76.9 °	78.1 °	77.5 °	78.5 °	77.9 °	78.3 °	78.9 °	78.6 °	79.2 °
Seat Tube Length	385 mm	385 mm	410 mm	410 mm	435 mm	435 mm	460 mm	460 mm	485 mm	485 mm
Head Tube Angle	65.6 °	65 °	65.6 °	65 °	65.6 °	65 °	65 °	65.6 °	65 °	65.6 °
Head Tube Length	100 mm	100 mm	108 mm	108 mm	116 mm	116 mm	124 mm	124 mm	132 mm	132 mm
Chainstay Length	433 mm	432 mm	433 mm	432 mm	433 mm	432 mm	437 mm	438 mm	437 mm	438 mm
Wheelbase	1187 mm	1189 mm	1211 mm	1212 mm	1234 mm	1236 mm	1264 mm	1263 mm	1287 mm	1286 mm
Bottom Bracket Drop	25 mm	33 mm	25 mm	33 mm	25 mm	33 mm	33 mm	25 mm	33 mm	25 mm
Standover Height	738 mm	730 mm	736 mm	728 mm	740 mm	732 mm	738 mm	746 mm	742 mm	750 mm
Wheels	29"	29"	29"	29"	29"	29"	29"	29"	29"	29"
Rider Min Height	153 cm	153 cm	162 cm	162 cm	172 cm	172 cm	181 cm	181 cm	190 cm	190 cm
Rider Max Height	166 cm	166 cm	176 cm	176 cm	185 cm	185 cm	194 cm	194 cm	203 cm	203 cm

Model years

yt Industries Jeffsy MX UNCAGED 13 2025

Key information split into simple groups.

Bike summary

Recommended size guide.

Main components, grouped by system.

Bike components

Frame

Suspension Fork

Rear Shock

Drivetrain

Rear Derailleur

Shift Levers

Cassette

Crank

Bottom Bracket

Wheels

Rims

Tires

Brakes

Brakes

Cockpit

Stem

Handlebar

Grips

Headset

Seat

Saddle

Seatpost

Numbers for sizing and ride feel.

Related bike families.