Pure RT100 / RT320 Road Hub Set 420g


Pure RT’s are on the level of Ultegra, in terms of fit and finish, but with a lighter weight sealed cartridge bearing hub shell /freehub design.


The sealed bearing front Pure RT100 hub is very light, at 100g.  This weight is accurate, not favorably rounded down a few grams to make a nice even number.  But that’s just a number.  The reality is that these are very durable hubs, employing the use of high quality sealed cartridge bearings that fit precisely into an aluminum hub shell.  The flanges are notably thick, with slightly recessed and chamfered spoke holes.  In sum, this is a top quality front hub.

The Pure RT320 rear cassette hub balances performance and capability.  At 320g, this hub is very light, but it still employs a steel axle and freehub for ultimate durability.  Whether you’re touring, camping, hauling gear, or just riding tons of miles, these hubs are up for the task.   The hub flanges are extra thick, with spoke holes that are slightly recessed so that the flange helps support the spoke elbow.  The cassette free hub body engages via a double 3 point pawl mechanism, (compared to the standard 2 or 3), which creates a fast, secure feel every time torque is applied through the pedals. The rear free hub body is easy enough to remove, in case you want to clean and re-grease the internals, and offers Campy compatibility with the separate purchase of a Campy free hub.  The steel freehub resists cassette bite, so swapping cassettes is a breeze.

We love these hubs, as they have proven to be a very low maintenance, highly reliable, light weight alternative to many other more expensive high end options in the marketplace.

*Includes a light weight alloy front and rear matching QR lever.

-Installation of the cassette requires an application of 40 Nm of torque upon the cassette lock ring, please use a properly set, calibrated torque wrench to install.

BWW Pure RT100 / RT320 Road Hub Set Specs

Pure RT100 / RT320 Front Rear Wheel Weights (approx)
Hub Info BWW RT100 BWW RT320
Hub Weight 100g 320g 100g F, 320g R
Hub Shell Aluminum Alloy
Axle Info QR 9mm x 100mm OLD QR 10mm x 130mm OLD
Hole Ct 24H, 28H, 32H, or 36H 28H, 32H or 36H
DriveS PCD
38 45
DS Ctr to Flange 34 18
Non-DriveS PCD 38 45
NDS Ctr to Flange 34 35
Axle Material Steel Alloy
Bearings Sealed Cartridge Taiwan EZO Bearings
Bearing Size TBA TBA
Freehub Shimano/SRAM Road 8/9/10 speed
FH Option Campagnolo Campagnolo 8/9/10/11 speed
FH Material Steel Alloy
    • All options include QR levers.

Additional information

Weight 7 lbs
Dimensions 30 × 7 × 26 in


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