Handlebar Stem Adaptors

This page lists threaded to threadless sytem converters, stem risers, headset spacers and miscellaneous stem spares.

Threadless Converter

62953
!
Takes the place of a quill stem and gives a place to attach a 1-1/8" threadless stem. Suits 1" and 1-1/8" forks; adaptor is 1" but has a shim for 1-1/8".
This adaptor is silver; if you want to see black at the front or your bike instead of silver, then no part of the adaptor remains visible if you use use headset spacers under your stem. Weight: 160g.

Threadless Stem Adaptor 25.4mm to 28.6mm

62901
!
Shim to use a 1-1/8" threadless stem on a 1" threadless fork.

Flanged top. 41.5mm long including flange; 39mm long not including flange.

Weight: 17g.

Wheels Mfg Handlebar Shims 25.4 to 31.8

2685
!
Wheels Manufacturing handlebar shims allow you to use almost any bar and stem combination.

Machined aluminium. Black anodized. Made in the USA. Length: 40mm.

Shipping Weight: 15g.

Wheels Mfg Handlebar Shims 26.0 to 31.8

2428
!
Wheels Manufacturing handlebar shims allow you to use almost any bar and stem combination.

Machined aluminium. Black anodized. Made in the USA. Length: 40mm.

Shipping Weight: 15g.

Zoom Heads Up II Black

62954
!
Takes the place of a 1-1/8" threadless stem and the stem then mounts on the adaptor, up to 70mm higher than originally.

Double wedge system attaches the adaptor to the fork. Extra long bolt preloads the headset bearing, using the original star nut in the fork. 6061 aluminium alloy.

If you want to use one of these adaptors, be prepared to replace any (or all) gear and brake cables that are not long enough to reach the new, higher lever position. Requires minimum of 34mm steerer tube insertion. Also a maximum of 42mm: use spacers if more steerer tube is available. Weight: 214g.

Headset Spacer 1-1/8" x 2mm

83193
!
Aluminium headset spacer. Black anodised.

 

Weight: 2g.

Pro Headset Spacer Kit 1-1/8" Alloy

83191
!
Threadless spacer kit: 2, 2.5, 5, 10 & 20mm spacers to fit 1-1/8" steerer.

Aluminium, black anodised.

Weight: 37g.