Shenzhen SuRuiqi Technology Co., Ltd
Threadless External Headsets VH-01 manufactured by VALORIDER
External Headsets

Threadless External Headsets VH-01

110 gram external cup headset on two sealed cartridge bearings

Product overview

What It Is and Who It Is For

An external cup threadless headset, fully CNC machined from 6061AL-T6, running two sealed cartridge bearings. The set weighs 110 grams, measures 28.6 by 34 by 30 mm and gives a 33 mm stack height made up of 21 mm upper and 12 mm lower.

VH-01Model reference
110 g per setWeight
6061AL-T6, full set CNC machinedMaterial
28.6 mm x 34 mm x 30 mmDiameter
Threadless External Headsets VH-01 shown in detail
Key benefits

Why Buyers Choose This Part

Sealed cartridge bearings

Two sealed cartridges instead of loose balls and races, which is the difference between a headset that needs greasing every season and one that does not.

Machined as a full set

Cups, crown race and compression ring all machined from 6061AL-T6, so the tolerances match each other rather than being sourced from different places.

Five anodised colours

Red, gold, titanium, blue and black, which lets a brand match a headset to a frame without a custom run.

Problems It Solves

  • Loose ball headsets need servicing far more often than a sealed cartridge
  • Headsets that are not dimensionally consistent make frame assembly slow
  • A component range with no colour options cannot match a frame

Who It Is For

  • Frame builders specifying a headset for a straight 1 1/8 inch head tube
  • Bike brands completing an own-brand component range
  • Distributors supplying workshops with replacement headsets

Application Scenarios

  • Straight 1 1/8 inch head tube frames
  • Complete bike assembly on an OEM production line
  • Workshop replacement of a worn loose-ball headset

Technical Features

  • 6061AL-T6 throughout, machined rather than cast
  • 33 mm total stack height, which matters when you are calculating steerer length
  • 28.6 mm steerer interface, 34 mm cup, 30 mm depth
  • Two sealed cartridge bearings
Specifications

Published Specification

Weight110 g per set
Material6061AL-T6, full set CNC machined
Diameter28.6 mm x 34 mm x 30 mm
Stack height21 mm + 12 mm = 33 mm
Bearings2 sealed cartridge bearings
ColourAnodised red, gold, titanium, blue or black

Every figure in this table is transcribed from the VALORIDER catalogue specification for this product. Nothing has been estimated.

Photography

Product Views

Compared With the Alternatives

The external cup sits outside the head tube, so it carries a taller 33 mm stack than our semi-internal headset at 9.5 mm, but it takes a larger bearing and suits frames that have not been machined for an internal cup. Choose semi-internal where the frame allows it and stack height matters.

Customisation and Manufacturing

Machined parts are cut from solid bar on the CNC side of the Shiyan Town plant. Alloy, tolerance and anodised colour are all specified at drawing stage, and the mark is usually lasered rather than printed so it survives handling and solvent.

  • Alloy and tolerance built to your drawing
  • Laser marking or engraving on the anodised surface
  • Anodised colour matched to an approved sample
  • Polybag, card or colour box packing
Use guide

Fitting and Living With It

  1. Step 1

    Confirm the head tube is machined for external cups before pressing.

  2. Step 2

    Press the cups square with a headset press, not with a hammer.

  3. Step 3

    Allow for 33 mm of stack when you cut the steerer.

  4. Step 4

    Preload with the top cap before clamping the stem, and check for play by holding the front brake and rocking the bike.

FAQ

Threadless External Headsets VH-01 Questions

What steerer diameter does this fit?
28.6 mm, which is the 1 1/8 inch standard.
How much stack height does it add?
33 mm in total: 21 mm at the top and 12 mm at the bottom. Take that off your available steerer length before cutting.
Are the bearings replaceable?
Yes. They are sealed cartridge bearings, so a worn bearing is pressed out and replaced without discarding the cups.
Can we have it anodised in our own colour?
Five colours run as standard. A brand-specific colour is an OEM item and needs a colour standard and an approved sample.

Quote Threadless External Headsets VH-01

Send the quantity, the destination port and any branding requirement. We will come back with the questions that decide the price.