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JetBlack VOLT V2 vs Saris H3

Quick answer

Both the JetBlack VOLT V2 and the Saris H3 are direct-drive trainers that accept the common road and MTB axles. The JetBlack VOLT V2 (1800 W, ±2.5%, $550) offers Shimano/SRAM HG (HyperGlide) and SRAM XDR Driver Body; the Saris H3 (2000 W, ±2%, $999) offers Shimano/SRAM HG (HyperGlide), SRAM XD Driver Body and SRAM XDR Driver Body. Use the checker below to see which fits your exact bike.

Specs side by side

JetBlack VOLT V2Saris H3
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) and SRAM XDR Driver BodyShimano/SRAM HG (HyperGlide), SRAM XD Driver Body and SRAM XDR Driver Body
CassettePre-installed 11-speed Shimano/SRAM HG cassetteSold separately
Max cassette speed12-speed12-speed
Virtual shiftingUnconfirmedUnconfirmed
ProtocolsANT+PLUS, ANT+FEC, BLUETOOTHANT+PLUS, ANT+FEC, BLUETOOTH
Power accuracy±2.5%±2%
Max power1800 W2000 W
Max gradient16%20%
Flywheel4.7 kg9 kg
MSRP$550$999
StatusCurrentDiscontinued

Which fits your bike — JetBlack VOLT V2 or Saris H3?

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 VOLT V2 offers Shimano/SRAM HG (HyperGlide) and SRAM XDR Driver Body, while the Saris H3 offers Shimano/SRAM HG (HyperGlide), SRAM XD Driver Body and SRAM XDR Driver Body. Run your drivetrain through the checker to see which is a clean drop-in.