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Elite Justo 2 vs Zwift Hub (classic)

Quick answer

Both the Elite Justo 2 and the Zwift Hub (classic) are direct-drive trainers that accept the common road and MTB axles. The Elite Justo 2 (2300 W, ±1%, $1199) offers Shimano HG 11-speed road, SRAM XD Driver Body, SRAM XDR Driver Body, Shimano Micro Spline and Campagnolo; the Zwift Hub (classic) (1800 W, ±2.5%, $499) offers Shimano/SRAM HG (HyperGlide). Use the checker below to see which fits your exact bike.

Specs side by side

Elite Justo 2Zwift Hub (classic)
Drive typeDirect driveDirect drive
Factory model code——
Axle standards130 mm quick-release, 135 mm quick-release and 12 × 142 mm thru-axle130 mm quick-release, 135 mm quick-release, 12 × 142 mm thru-axle and 12 × 148 mm Boost thru-axle
Thru-axle adapterIncludedIncluded
Freehub (in box)Shimano HG 11-speed roadShimano/SRAM HG (HyperGlide)
Freehub optionsShimano HG 11-speed road, SRAM XD Driver Body, SRAM XDR Driver Body, Shimano Micro Spline and CampagnoloShimano/SRAM HG (HyperGlide)
CassetteShimano 105 12-speed road cassette pre-installedPre-installed cassette; speed (8–12) chosen at purchase
Max cassette speed12-speed12-speed
Virtual shiftingYesNo
ProtocolsANT+PLUS, ANT+FEC, BLUETOOTH, WIFIANT+PLUS, ANT+FEC, BLUETOOTH
Power accuracy±1%±2.5%
Max power2300 W1800 W
Max gradient24%16%
Flywheel7.2 kg4.7 kg
MSRP$1199$499
StatusCurrentDiscontinued

Which fits your bike — Elite Justo 2 or Zwift Hub (classic)?

29Drops straight in3Fits with parts1Not supported

Frequently asked questions

Both accept the same common road and MTB axles, so the deciding factor is the freehub for your cassette: the Elite Justo 2 offers Shimano HG 11-speed road, SRAM XD Driver Body, SRAM XDR Driver Body, Shimano Micro Spline and Campagnolo, while the Zwift Hub (classic) offers Shimano/SRAM HG (HyperGlide). Run your drivetrain through the checker to see which is a clean drop-in.