Say ‘good-bye’ to Jeffsy Pro, Comp and Base and ‘hello’ to Jeffsy Core

YT are on a Good Times roll this week with the second release in as many days! Check out the new Jeffsy Core series.

If the big travel of yesterdays new alloy Capra launches didn’t float your boat, then how about a refreshed version of the popular Jeffsy trail/all-mountain bike?

With the release of the Jeffsy Core, YT has done away with its original naming strategy. What this means is that Jeffsy Pro Race, Pro, Comp and Base have been completely replaced by the new Core models. There will be 3 Jeffsy Core bikes, each built to a certain price point.

The Jeffsy Core 4 and Core 3 builds will come with 29in wheels and carbon fibre framesets whereas the more affordable Jeffsy Core 2 will only come in an alloy, but will be sold with either 29in or 27.5in wheels. Core specification bikes will be available all year, but special edition Uncaged Jeffsy builds will be launched throughout the year.

All 3 builds come in a wide range of sizes from S to XXL, and each bike comes with a flip-chip to drop the BB by 8mm and knock 0.5 degrees from the head and seat tube angles.

Full build specs of each bike are available over on the YT website, but here is a quick rundown of the standout features of each Jeffsy Core bike;

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Jeffsy Core 29er Geometry

Sizes	S	M	L	XL	XXL
Top tube	572 mm	593 mm	615 mm	638 mm	660 mm
Reach	430 mm	450 mm	470 mm	490 mm	510 mm
Stack	618 mm	622 mm	627 mm	636 mm	640 mm
Seat tube length	400 mm	415 mm	435 mm	460 mm	485 mm
Chainstay	435 mm	435 mm	435 mm	440 mm	440 mm
Head tube angle	66°/66.5°	66°/66.5°	66°/66.5°	66°/66.5°	66°/66.5°
Seat tube angle (eff)	77° / 77.5°	77° / 77.5°	77° / 77.5°	77° / 77.5°	77° / 77.5°
Seat tube angle (act)	70.5° / 71°	70.5° / 71°	70.5° / 71°	70.5° / 71°	70.5° / 71°
BB Drop	32 / 24 mm	32 / 24 mm	32 / 24 mm	32 / 24 mm	32 / 24 mm
Wheelbase	1174 mm	1196 mm	1218 mm	1247 mm	1269 mm
Head tube length	100 mm	105 mm	110 mm	120 mm	125 mm
BB Height	344 / 352 mm	344 / 352 mm	344 / 352 mm	344 / 352 mm	344 / 352 mm
Standover Height	676 mm	684 mm	697 mm	711 mm	726 mm

Jeffsy Core 27.5 Geometry

Sizes	S	M	L	XL	XXL
Top tube	567 mm	590 mm	613 mm	636 mm	660 mm
Reach	422 mm	442 mm	462 mm	482 mm	502 mm
Stack	598 mm	608 mm	617 mm	626 mm	635 mm
Seat tube length	395 mm	415 mm	425 mm	460 mm	485 mm
Chainstay	432 mm	432 mm	432 mm	437 mm	437 mm
Head tube angle	65.5°/66°	65.5°/66°	65.5°/66°	65.5°/66°	65.5°/66°
Seat tube angle (eff)	76.5.° / 77°	76.5.° / 77°	76.5.° / 77°	76.5.° / 77°	76.5.° / 77°
Seat tube angle (act)	70.5° / 71°	70.5° / 71°	70.5° / 71°	70.5° / 71°	70.5° / 71°
BB Drop	13 / 6 mm	13 / 6 mm	13 / 6 mm	13 / 6 mm	13 / 6 mm
Wheelbase	1167 mm	1191 mm	1215 mm	1244 mm	1268 mm
Head tube length	110 mm	120 mm	130 mm	140 mm	150 mm
BB Height	344 / 352 mm	344 / 352 mm	344 / 352 mm	344 / 352 mm	344 / 352 mm
Standover Height	676 mm	684 mm	697 mm	711 mm	726 mm

Jeffsy Core Weight

Model	kg
JEFFSY Core 4 29	13.9
JEFFSY Core 3 29	14.4
JEFFSY Core 2 29	15.3
JEFFSY Core 2 27	15.1

Jeffsy Core Price

Model	Color	EUR	GBP	USD (net.)
JEFFSY Core 4 29	Vlad Red / Black Magic	4,999.00 €	£4,499.00	US$4,999.00
JEFFSY Core 3 29	Assault Green / Black Magic	3,999.00 €	£3,599.00	US$3,999.00
JEFFSY Core 2 29	Metal Silver / Black Magic	2,799.00 €	£2,499.00	US$2,799.00
JEFFSY Core 2 27	Metal Silver / Black Magic	2,799.00 €	US$2,499.00	US$2,799.00

For full specification details head over to the revamped YT website.

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