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YT goes again to its roots, and provides an inflation-busting Core 1 bike for £2,499. Prime-end Core 5 will get inside body storage, SRAM Transmission drivetain, and Fox Manufacturing unit suspension
YT Industries has a brand new model of its Jeffsy path bike out, and like Specialised, Trek, Large, Merida and many extra earlier than it you now get downtube storage so there’s someplace to stash your lunch.
Accessed via a hatch contained in the entrance triangle, the glovebox is undoubtedly a helpful addition to any bike, however it takes greater than that to make the Jeffsy a contender for finest path bike available on the market at this time.
Fortuitously for YT then, there’s loads extra happening right here with the third era Jeffsy, beginning with a change of journey.
Must know
- New vary runs from £5,999 for the YT Jeffsy Core 5, to £2,499 for the Core 1
- (learn our assessment of the YT Jeffsy Core 5)
- Three body supplies, Extremely Modulus carbon, Excessive Modulus carbon, and aluminium
- Journey paired again a smidge to 145mm from 150mm, fork stays at 150mm
- RockShox drivetrain all through the vary, from T-type AXS right down to to NX 12speed
- Inside storage within the downtube, with two waterproof instrument wraps ensconced inside
- Tweaked suspension traits, with extra anti-squat and development
- Geometry regulate by way of a flip chip, altering the BB top by 8mm and the top tube angle 0.6º
YT Jeffsy particulars
The fork stays at 150mm, however YT has chopped the bike’s journey down by 5mm to 145mm. Not a lot of a change, however the concept is to place the bike squarely between the downcountry Izzo (130mm) and the Capra enduro bike (165-170mm).
YT is sticking with 29in wheels for the Jeffsy, which makes complete sense to us for path bike as a result of the large hoops roll quicker on pedally terrain and are unlikely to take the form of beating enduro bikes would put them via.
What’s massive on YT’s agenda is to make the Jeffsy pedal higher than the previous bike. Lengthy-time readers of mbr may do not forget that the Jeffsy Core 2 we reviewed two years again had nice suspension however floundered on the climbs. All the brand new bikes now get size-specific efficient seat tube angles. This implies the place of the saddle relative to the underside bracket will stay the identical, even because the bike grows, placing riders of all sizes in the very best place for pedalling.
It’s not simply the seat tube angle that’s been adjusted right here both, YT has additionally elevated the anti-squat to round 105% at 30% sag, that means it ought to have extra assist while you’re pedalling, braking or pumping on the high of the journey. Concurrently, YT has additionally gone after the opposite finish of the stroke, including in development and assist right here too.
The carbon body itself now is available in two completely different variants, an concept Santa Cruz pioneered with its C and premium CC carbon. For the Jeffsy there’s now a premium Extremely Modulus model solely accessible on the Core 5, which YT says weighs barely much less (though there have been no figures accessible for us). And a Excessive Modulus, or barely heaver model of carbon, on the Core 4 bike. Each have the identical power and fatigue resistance, YT says.
Inside body storage
What self-respecting carbon fibre bike can be full with out in-frame storage? Nice rivals Canyon may effectively have the tech on its subsequent mountain bike too, if our guesswork is on level, however YT’s managed to get in there first. The Jeffsy now has body storage throughout all carbon fashions, and contained in the compartment has been break up in two, with neoprene body baggage provided to take your gear. The door’s waterproof, as are these zippered baggage too.
The vary
YT Jeffsy Core 5 CF £5,999
14.8kg (measurement small)
Extremely Modulus carbon fibre body with downtube storage
SRAM XO NT AXS 12speed drivetrain
Fox 36 Manufacturing unit fork
Fox Float X Manufacturing unit shock
SRAM Code RSC brakes with HS2 rotors
YT Postman V2 dropper submit
Renthal Apex stem and Renthal Fatbar alloy bar
Crankbrothers EN 3 AL wheelset, Maxxis Minion DHF/DHR II tyres with new EXO+ carcass and MaxxTerra compound
YT Jeffsy Core 4 CF £4,999
15.1kg
Excessive Modulus carbon fibre body with downtube storage
SRAM GX NT AXS 12speed drivetrain
RockShox Lyrik Final fork
RockShox SDLX Final shock
SRAM CODE RSC brakes
YT Postman V2 dropper submit
Renthal APEX BLACK stem and YT alloy bar
Crankbrothers EN 2 AL wheelset, Maxxis Minion DHF/DHR II tyres with new EXO+ carcass and MaxxTerra compound
YT Jeffsy Core 3 CF £3,999
Carbon body, 14.9kg
SRAM GX Eagle 12speed drivetrain
FOX 36 Efficiency fork
FOX Float X Efficiency shock
SRAM CODE R brakes
YT Postman V2 dropper submit
Renthal stem and YT bar
DT Swiss M1900 wheelset, Maxxis Minion DHF/DHR II tyres with new EXO+
YT Jeffsy Core 2 AL £2,999
Alloy body, 15.5kg
SRAM GX Eagle 12speed drivetrain
FOX 36 Efficiency fork
FOX Float X Efficiency shock
SRAM CODE R brakes
YT Postman V2 dropper submit
Renthal OE stem and bar
DT Swiss M1900 wheelset, Maxxis Minion DHF/DHR II tyres with new EXO+
YT Jeffsy Core 1 AL £2,499
Alloy body, 16.0kg
SRAM SX/NX Eagle 12speed drivetrain
RockShox Lyrik Base fork
RockShox Deluxe SEL+ shock
SRAM DB8 brakes
YT Postman V2 dropper submit
E13 BASE SUNRINGLE 329 wheelset, Maxxis Minion DHF/DHR II tyres with new EXO+
Geometry (as measured within the Low setting, in Dimension Giant)
Head angle 64.1º
Seat angle 71.0º
Efficient SA (@760mm) 78.2º
BB top 342mm
Chainstay 438mm
Entrance centre 803mm
Wheelbase 1241mm
Down tube 742mm
Seat tube 430mm
Prime tube 600mm
Attain 477mm
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