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2018 Large SKU: BMT21156

YT Jeffsy 29 CF Pro Mountain Bike - 2018, Large

Recommended Rider Height: 5'11" - 6'1" Size Guide
Regular price

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Master Mechanic's Notes:
- Paint nick on downtube.
- Scratches on fork crown and fork lowers.
- Scratches on crank arms.
- Scratches on top tube.
- Small paint nicks on back of seatube.
- Paint nicks on inside of swingarm.
- Moderate scratches on front rim.
- Scratch on dropper post stanchion.

- New crankbrothers Synthesis rear wheel designed specifically for speed & control.

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TPC Guarantee

This bike passed a 141-point inspection and received a full pro-tune by our Master Mechanics in our Certified Pre-Owned process. CPO bikes are pristine and ready to ride!

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30-Day Hassle-Free Returns

Shop with confidence. Every bike is covered by our 30-day satisfaction guarantee. If this bike isn’t perfect for you, get in touch and we’ll help you find the right bike.

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RideFast Shipping

Bikes ship in our custom RideFast box, and assembly is incredibly simple. Most novice riders can assemble their bike in 5 minutes or less. The tools you need to assemble are also included.

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Year 2018
Brand YT
Model Jeffsy 29 CF Pro
Size Large
Frame Material Carbon Fiber
Drivetrain Shimano, 1x11 spd
Weight 29 lbs 7 oz
Fork Fox 34 Performance Elite
Fork Travel 140mm
Rear Shock Fox Float DPS Performance Elite
Rear Shock Travel 140mm
Brakes SRAM Guide RSC, Disc Brakes - Hydraulic
Shifters Shimano XTR M9000, Mechanical
Rear Derailleur Shimano XTR M9000
Bottom Bracket Shell Press fit
Crankset Race Face Next R Carbon, 32t, 175mm
Cassette e*thirteen TRS+, 9-46t
Chain Shimano
Handlebar Race Face Next R Carbon, 780mm
Headset Integrated
Stem Race Face Turbine Alloy, 35.0mm x 50mm, 0°
Seatpost Fox Transfer Performance Elite, 31.6mm
Seatpost Travel 150mm
Saddle Velo
Front Axle Spacing 15x110mm (Boost)
Rear Axle Spacing 12x148mm Boost
Wheelset Front: e*thirteen TRS+ Disc Aluminum Tubeless Compatible Rear: Crank Brothers Synthesis Disc Aluminum Tubeless Compatible , Front: e*thirteen TRS+ Rear: Crank Brothers
Front Tire e*thirteen TRS+, 29" x 2.35"
Rear Tire e*thirteen TRS+, 29" x 2.35"
Tire Type Tubeless
Tubeless Compatibility Bike ships tubeless
Charger Included N/A


Recommended Rider Height 5'11" - 6'1"
a. Effective Top Tube 616 mm
b. Seat Tube 480 mm
c. Seat Tube Angle 74.5, 75 (Low, High)
d. Head Tube Angle 67, 67.5 (Low, High)
e. Head Tube 110 mm
f. Stack 623 mm
g. Reach 445 mm
h. Standover Height 802 mm
i. Saddle Height Range 690 - 830 mm

“I love this company! My beautiful bike arrived promptly, was packed brilliantly, and tuned perfectly. It was exactly as described.”

— Kari K.


“In the past month, I purchased a road bike and MTB from TPC. Very happy with the price and condition of both bikes! I was riding the bikes 10 minutes after I received them.”

— David H.

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