The JEFFSY Base 29 is an all-mountain bike featuring an aluminum frame and fast-rolling 29-inch wheels, made for any rider looking for maximum riding pleasure. The RockShox suspension offers 150 mm of front travel and our progressive V4L kinematics are ready for any challenge, so you can go right ahead and hit that next jump.
With 150 mm of travel, the RockShox Yari RC is built around the same robust chassis as the Lyrik, matched up here with the proven Motion Control damper. Out back, the RockShox Deluxe Select shock provides all the performance you require from an all-mountain bike.
The 1x12 drivetrain is made by SRAM: the SX Eagle group features an aluminum crank with a steel chainring and thanks to the 11 – 50 cassette, it provides enough range to make sure you can always find the right gear for any terrain. The M1900 wheels from DT Swiss were developed specifically to meet the demands of modern all-mountain bikes and together with the MAXXIS Minion DHR II tires they form the perfect combo for both uphill and downhill action. SRAM’s Guide T delivers reliable braking performance while the YT Postman dropper post makes sure you always have the saddle where you need it.
FrameJeffsy Alloy 29"
high modular alloy main frame | V4L Virtual 4-Link rear suspension | 148x12mm DT Swiss QR Thru axle | down tube/seat stay/chain stay protection
CranksetSRAM SX Eagle
175 mm | 32 T | DUB
WheelsetDT Swiss M 1900 SPLINE
29" x 30 mm | 110 x 15 mm | 148 x 12 mm
ForkRockShox Yari RC
29" | 150 mm | 15 x 110 | 42 mm Rake
Rear DerailleurSRAM SX Eagle
Front TireMAXXIS Minion DHR II
Dual Compound 29" x 2.4 | EXO | TR
ShockRockShox Deluxe Select
210 x 55 mm
ShifterSRAM SX Eagle
Rear TireMAXXIS Minion DHR II
Dual Compound 29" x 2.4 | EXO | TR
StemRace Face AEFFECT R 35
50MM LENGTH | 35MM CLAMP | 0 RISE
CassetteSRAM PG1210 Eagle
11- 50 T | 12- Speed
BrakesSRAM Guide T
Rotor Centerline 200 mm / 180 mm
Weight*14,2 kg / 31,3 lb
*Avg. weight shown is for size S bike, with tubes, no pedals, no bottle
31.6 mm | S - M 125 mm drop / L 150 mm drop / XL - XXL 170 mm drop
Pedalsincluded / 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.
HandlebarRace Face AEFFECT R
780 mm Width | 20 mm Rise | 35 mm Clamp
SaddleSDG RDR MNT
Tool KitIceToolz Set
Torque Wrench (3NM-10NM; 3-6mm, reset) | Shock Pump (330psi/20.6bar; pressure relief valve) | Allen Key | Anti-Slip Paste
GripsODI Elite Motion V 2.1
Frame SizeS / M / L / XL / XXL
ColorBLACK MAGIC [Base]
The easy-rolling JEFFSY 29 combines outstanding climbing capabilities with speedy downhill performance. The long reach, slack head angle and low front give you an aggressive position for the descents, so you can stay active and in control at all times. Thanks to the rolling characteristics of the 29-inch wheels and the steep seat tube angle you’ll easily get back to the top without lifts or hike-a-bikes.
With the Flip Chip, you can make the head angle 0.5 degrees steeper and raise the BB. To ensure a balanced geometry across all frame sizes, the chain stays are 5 mm longer on XL and XXL frames.
|A Toptube length||572 mm||593 mm||615 mm||638 mm||660 mm|
|B Reach||430 mm||450 mm||470 mm||490 mm||510 mm|
|C Stack||618 mm||622 mm||627 mm||636 mm||640 mm|
|D Seattube length||400 mm||415 mm||435 mm||460 mm||485 mm|
|E Chainstay length||435 mm||435 mm||435 mm||440 mm||440 mm|
|F Headtube angle||66 / 66,5 °||66 / 66,5 °||66 / 66,5 °||66 / 66,5 °||66 / 66,5 °|
|G Seattube angle (eff.)||77 / 77,5 °||77 / 77,5 °||77 / 77,5 °||77 / 77,5 °||77 / 77,5 °|
|H BB Drop||32 / 24 mm||32 / 24 mm||32 / 24 mm||32 / 24 mm||32 / 24 mm|
|I Wheelbase||1182 mm||1204 mm||1226 mm||1255 mm||1277 mm|
|J Headtube length||100 mm||105 mm||110 mm||120 mm||125 mm|
|K BB height||344 / 352 mm||344 / 352 mm||344 / 352 mm||344 / 352 mm||344 / 352 mm|