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JetBlack WhisperDrive Smart vs Xplova Noza S

Quick answer

Both the JetBlack WhisperDrive Smart and the Xplova Noza S are direct-drive trainers that accept the common road and MTB axles. The JetBlack WhisperDrive Smart (2500 W, ±5%, $1099) offers Shimano/SRAM HG (HyperGlide), Campagnolo and SRAM XD Driver Body; the Xplova Noza S (2500 W, ±2.5%, $879) offers Shimano/SRAM HG (HyperGlide). Use the checker below to see which fits your exact bike.

Specs side by side

JetBlack WhisperDrive SmartXplova Noza S
Drive typeDirect driveDirect drive
Factory model code——
Axle standards130 mm quick-release, 135 mm quick-release, 12 × 142 mm thru-axle and 12 × 148 mm Boost 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/SRAM HG (HyperGlide)Shimano/SRAM HG (HyperGlide)
Freehub optionsShimano/SRAM HG (HyperGlide), Campagnolo and SRAM XD Driver BodyShimano/SRAM HG (HyperGlide)
CassetteSold separatelySold separately
Max cassette speed12-speed11-speed
Virtual shiftingNoNo
ProtocolsANT+PLUS, ANT+FEC, BLUETOOTHANT+PLUS, ANT+FEC, BLUETOOTH
Power accuracy±5%±2.5%
Max power2500 W2500 W
Max gradient16%18%
Flywheel6.5 kg5.9 kg
MSRP$1099$879
StatusDiscontinuedCurrent

Which fits your bike — JetBlack WhisperDrive Smart or Xplova Noza S?

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 JetBlack WhisperDrive Smart offers Shimano/SRAM HG (HyperGlide), Campagnolo and SRAM XD Driver Body, while the Xplova Noza S offers Shimano/SRAM HG (HyperGlide). Run your drivetrain through the checker to see which is a clean drop-in.