YT Jeffsy 29 AL – 2017 specification and geometry

by Matt | January 5, 2019 | Filed under Bikes | 1 reply so far

YT Jeffsy 29 AL 2017 front view
Front view of the 2017 YT Jeffsy 29 AL

As an aide memoire before the information disappears off the internet, this is the original specification of the Jeffsy 29er AL from 2017.

YT Jeffsy 29 AL 2017

YT Jeffsy 29 AL 2017 specification
Colour Black Pearl/Blue Lagoon
Frame Air-formed aluminium frame
V4L Virtual 4-Link rear suspension, 12x148mm, DT Swiss QR Thru axle
Fork RockShox Pike RC
Solo air, RC damper cartridge, Compression to ‘Lock’, Rebound, Tapered steerer, 15x100mm QR Thru axle, 140mm travel
Rear shock RockShox Monarch R
Debonair air-can, external rebound, 7.875″x2.25″/ 200x57mm
Wheelset DT Swiss M1900 Spline 29″
FW 15x100mm Thru Axle,
RW 12x148mm Thru Axle
Shifters Shimano SLX M670
2×10 speed
Rear derailleur Shimano M675
10 speed Shadow Plus
Front derailleur Shimano SLX M677
E-type, side swing, front pull
Cassette Shimano SLX
10 speed 11-36
Chain Shimano
HG54
Chainset Race Face Aeffect
175mm 24/36, BB92
Bottom Bracket Race Face
BB92
Brakes Shimano SLX M675
2 piston, tool-free reach adjust, metal pad w/fin
Discs Shimano SLX
200mm front/180mm rear
Seatpost RockShox Reverb Stealth internal cable routing
S: 390 mm/125 mm travel,
M , L, XL: 440mm / 150mm travel,
31.6 mm
Saddle SDG Circuit
Cro-Mo rails, 280mm x 135mm
Headset Acros AZX-203
ZS44;28.6 | ZS56;40
Stem Race Face Aeffect
35mm clamp,
S, M: 50mm,
L, XL: 60mm
Handlebar Race Face Aeffect
760mm, 20mm Rise, 8° backsweep, 5° upsweep, 35mm clamp
Grips Race Face
Love Handle
Tyres Onza Ibex
29×2.4″, 55a, FRC 120
Weight 14.3 Kg / 31.5 Lb
YT Jeffsy 29 AL 2017 side view
The 2017 YT Jeffsy 29 AL

YT Jeffsy 29 geometry

YT Jeffsy 29 AL 2017 geometry chart
2017 YT Jeffsy 29 AL geometry
YT Jeffsy 29 geometry chart
Sizes S M L XL
A Toptube length (mm) 571 592 616 637
B Reach (mm) 405 425 445 465
C Stack (mm) 605 610 623 628
D Seattube length (mm) 400 440 480 520
E Chainstay length (mm) 435 435 440 440
F Headtube angle low/high 66.9 / 67.6 °
G Seattube angle (eff.) low/high 74.7 / 75.3 °
H BB Drop low/high (mm) 32/24
I Wheelbase (mm) 1132 1154 1178 1205
J Headtube length (mm) 90 95 110 115
K Steerer tube length (mm) 551
L Fork offset (mm) 46

Thanks for reading,
Matt

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  1. August 12, 2019 at 11:11 am

    Greg says:

    Great, thanks Matt. Just got this model second hand, very useful info.

    Reply to this comment, or add a new comment

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