2019 YT Industries Jeffsy AL Base 29
- Category
- Full-suspension Trail MTB
- Design
- Flat Bar, Full suspension
- Frame
- Aluminum
- Suspension
- 140mm fork travel, 140mm rear travel
- Features
- Disc brake
Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
Small | Medium | Large | XL | |
Stack | 605mm | 610mm | 623mm | 628mm |
Reach | 405mm | 425mm | 445mm | 465mm |
Stack to Reach Ratio | 1.49:1 | 1.44:1 | 1.4:1 | 1.35:1 |
Seat Tube Length, C-T | 400mm | 440mm | 480mm | 520mm |
Top Tube Length, Effective/Horizontal Unknown | 571mm | 592mm | 616mm | 637mm |
Top Tube Slope | 23.2deg | 18.9deg | 15.6deg | 11.9deg |
Head Tube Angle | 67deg | 67deg | 67deg | 67deg |
Seat Tube Angle | 74.5deg | 74.5deg | 74.5deg | 74.5deg |
Head Tube Length | 90mm | 95mm | 110mm | 115mm |
Bottom Bracket Drop | 24mm | 24mm | 24mm | 24mm |
Bottom Bracket Height | 348mm | 348mm | 348mm | 348mm |
Chainstay Length | 435mm | 435mm | 440mm | 440mm |
Chainstay Length Horizontal | 434.3mm | 434.3mm | 439.3mm | 439.3mm |
Front-Center | 698mm | 720mm | 739mm | 766mm |
Front-Center Horizontal | 697.7mm | 719.7mm | 738.7mm | 765.7mm |
Wheelbase | 1132mm | 1154mm | 1178mm | 1205mm |
Fork Offset/Rake | 42mm | 42mm | 36mm | 41mm |
Trail | 112.3mm very high | 112.3mm very high | 118.8mm very high | 113.4mm very high |
Mechanical Trail | 103.3mm | 103.3mm | 109.3mm | 104.3mm |
Wheel Flop | 40.4mm | 40.4mm | 42.7mm | 40.8mm |
Tire to Pedal Spindle | 151mm 175 mm cranks | 173mm 175 mm cranks | 192mm 175 mm cranks | 219mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 173mm 175 mm cranks | 173mm 175 mm cranks | 173mm 175 mm cranks | 173mm 175 mm cranks |
AL Base 29 Build
Small | Medium | Large | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.4in | 2.4in | 2.4in | 2.4in |
Tire Outer Diameter | 743.9mm | 743.9mm | 743.9mm | 743.9mm |
Bike Length with Tires | 1875.9mm | 1897.9mm | 1921.9mm | 1948.9mm |
Crank Length | 175mm | 175mm | 175mm | 175mm |
Handlebar Width | 780mm | 780mm | 780mm | 780mm |
Stem Length | 50mm | 50mm | 50mm | 50mm |
Stem Angle | 0deg | 0deg | 0deg | 0deg |
Published Sizing Recommendations
Height | 5 ft 2 in to 5 ft 8 in | 5 ft 6 in to 5 ft 11 in | 5 ft 10 in to 6 ft 3 in | 6 ft 1 in to 6 ft 7 in |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Full-suspension Trail MTBSource:https://99spokes.com/bikes/yt/2019/jeffsy-29-al-base