BWW Pure D400 MTB Hub Set 400g


Pure D400’s are light weight, with strong engagement, and feature convertible axles and freehubs.


Light enough for high altitude XC climbs, strong enough for the fast paced, hard hitting downhill runs to follow.  D400 hubs are centered around super heavy duty oversized axles.  The front is convertible between 9mm QR, 9mm TA, and 15mm QR TA.  The rear between 135mm QR, 135mm x 10mm TA, 135mm x 12mm TA, and 142mm x 12mm TA.  Converting between axle types is a simple matter of swapping end caps.  The front requires no tools, the rear, some basic wrenches.  The rear aluminum alloy freehub is interchangeable between Shimano HG and Sram XD.

The rear hub features a crisp, 24 point / 15 degree engagement system via the freehub embedded 3×2 pawl system.

BWW Pure D400 MTB Hub Set Specs

D400 Front Rear Wheel Weights (approx)
Hub Info Pure D400 Pure D400
Hub Weight 160g (QR), 152g (15TA) 260g (QR), 252g (12TA) 160g F, 260g R
Hub Shell Aluminum Alloy
Axle Info QR 9mm x 100mm OLD QR 10mm x 135mm OLD
Hole Ct 32H 32H
DriveS PCD
58 58
DS Ctr to Flange 35.5 18
Non-DriveS PCD 58 58
NDS Ctr to Flange 22 34.5
Axle Material 17mm Aluminum Alloy
Convertible Axles Yes – Front = 9mm x 100mm QR, 15mm x 100mm TA, 12mm x 100mm TA, 9mm x 100mm TA
Rear = 10mm x 135mm QR, 10mm x 135mm TA, 12mm x 135mm TA, 12mm x 142mm TA
Bearings Sealed Cartridge Taiwan EZO Bearings
Bearing Size MR17287LLB x 2 MR17287LLB x 2 Hub Shell HG Freehub MR17287LLB/6803LLB,   XD = 6803LLB x 2
Freehub Shimano/SRAM MTB 8/9/10/11 speed or Road 8/9/10 speed
FH Material Aluminum Alloy
    • All options include QR levers.

Additional information

Weight 7 lbs
Dimensions 30 × 7 × 26 in


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