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PRIMARO

From 204 g. One hub, three spoke interfaces.

PRIMARO is our Centre Lock hub for road and gravel. You choose how the spokes meet the hub: SP for straight-pull spokes, M4 with an M4 × 0.5 thread for threaded carbon spokes, or T for T-head spokes.

  • Set weight: SP 204 g, T 205 g, M4 210 g
  • 12 × 100 mm (15 × 100 mm also available for less common forks) / 12 × 142 mm, Centre Lock
  • Freehub: SRAM XDR, Shimano HG Road, Shimano Microspline Road, Campagnolo N3W
  • Bearings: Highspeed steel, Enduro steel or ULTRA ceramic hybrid

831.93 € 831.93 € incl. VAT, plus shipping

Weight from 204g
System weight max. 130 kg
Axle Front 12/15 × 100
Rear 12 × 142
Brake Center Lock
  • Hub color
  • Spoke interface
  • Hole count
  • Front axle standard
  • Freehub
  • Bearings
Ships within 5 working days Built to order in Winnenden 14-day right of withdrawalTermsShipping & payment
Does it fit your bike? FitCheck in 60 seconds →
  • 4-year guarantee
  • Crash Replacement
  • Handmade in Winnenden
  • Wheel Specialist
Why we built it

PRIMARO is the hub our road wheels started with. In its second generation, the drive-side flange of the rear hub sits further out. The spoke angle gets flatter, and the wheel becomes stiffer laterally and calmer under load.

The M4 version takes threaded carbon spokes directly in the flange, with no nipple at the hub. It is one of the lightest ways to join hub and spoke, and the basis for low spoke-count builds.

Inside sits the NonPlus Conical Ratchet System. Its conical teeth spread drive torque over a large contact area, which keeps wear low and engagement clean. NON PLAY sets the bearing preload by itself. NON VACUUM equalises pressure inside the hub and keeps moisture away from the bearings. NON GAP protects the bearings with a micro gap at the end caps instead of dragging seals.

Machined and assembled by hand in Winnenden, Germany. Hub, axle and end caps carry a 4-year warranty.

What you should know
  • Use: Gravel, Road, Cyclocross
  • Maximum system weight 130 kg (rider, bike and luggage)
  • Disc brake, mount Center Lock
  • Approved for e-bikes
  • Made to order in Winnenden
Compatibility
  • Road and gravel with thru-axle
  • Front 12 × 100 mm or 15 × 100 mm (selectable)
  • Rear 12 × 142 mm
  • Center Lock brake rotors
  • E-bikes up to 60 Nm motor torque, not with Shimano HG freehub
In the box
  • Front hub and rear hub
  • Freehub body in the selected standard
  • End caps fitted
Specifications

The numbers.

General

Intended use
Gravel, Road, Cyclocross
Hub set weight
from 204 g
Front hub weight
from 63 g
Rear hub weight
from 141 g
Hub shell material
Aluminium
Max. system weight
130 kg
E-bike approval
Yes
E-bike: max. motor torque
60 Nm

Interfaces

Axle standard front
12 × 100 / 15 × 100 mm
Axle standard rear
12 × 142 mm
Brake mount
Center Lock
Freehub system
NonPlus Conical Ratchet System
Freehub body (cassette)
Shimano HG, Shimano Microspline, SRAM XDR, Campagnolo N3W
Max. spoke tension
1.200 N
Max. spoke tension rear (24 holes)
1.300 N
Sound

Listen.

This is what the freehub of a NonPlus hub sounds like.

0:000:33

PRIMARO ULTRA M4 in the AERO65 ULTRA. Spin it once and watch it run until it stops.

Inside the hub

Technology you don’t feel.

  • NON PLAYSelf-adjusting bearing preload. No readjusting, no play.
  • NON VACUUMSealing that keeps dirt and water away from the bearings.
  • NON GAPEnd caps with a micro-gap against friction and ingress.
All technologies →
Downloads

Manuals & documents

One manual for every NonPlus hub. Read it before installing and riding.

PRIMARO Product data sheet Specifications, versions, item numbers and GTIN
PDF · 467 KB Open PDF ↗
Safety & Quick Start · Hubs European languages DE · EN · ES · FR · IT · PL
PDF · 0.9 MB · Edition 10/2026 Open PDF ↗
Safety & Quick Start · Hubs Asian languages DE · EN · 简体 · 繁體 · 한국어 · 日本語
PDF · 4.8 MB · Edition 10/2026 Open PDF ↗
Wheel Specialist

Talk to us before you order.

We check frame, freehub and riding style and tell you which wheelset or hub fits.

+49 7195 9577901Mon–Fri · 9.30 am–4.30 pm
  • 4-year guaranteeon hub, axle and end caps
  • Crash Replacement50 % off replacement, 2 years
  • Handmade in Winnendenassembled and tested
  • Wheel Specialistpersonal advice