A Spectre Carbon Fibre 451x23mm Braking Rim on a white background with reliability and warranty.

A close up of a reliable black Spectre Carbon Fibre 451x23mm Braking Rim with warranty.

A close up image of a black Spectre Carbon Fibre 451x23mm Braking Rim bicycle tire, emphasizing its reliability and warranty.

A Spectre Carbon Fibre 451x23mm Braking Rim with carbon fiber detailing on a white background.

A close up of a Spectre Carbon Fibre 451x23mm Braking Rim known for its reliability and backed by an extensive warranty.

A close up of a black Spectre Carbon Fibre 451x23mm Braking Rim tire, known for its reliability and covered by warranty.

Highlights

Takes 20x1-1/8 to 20x1-3/8
391mm ERD, 28 hole
Toray T700 carbon fibre
4D drilled spoke holes

Description

The Spectre 451x23mm braking rim is made from Toray T700 carbon fibre with an understated UD finish and only a small tonal logo near the valve hole. The spoke holes are 4D drilled to follow the spoke path, which takes stress off the spoke and nipple.

It is drilled 28H, runs a 38mm deep section, and has an ERD of 391mm for spoke length. At 451x23mm it takes tyres from 20x1-1/8 to 20x1-3/8, and it carries a 2 year warranty against manufacturer defects.

Features

Takes 20x1-1/8 to 20x1-3/8. The 451x23mm ETRTO size covers the usual race tyres, so check your tyre falls in that range before building.
391mm ERD, 28 hole. Work your spoke lengths off an ERD of 391mm and a 28H drilling, so the build comes up right first time.
Toray T700 carbon fibre. High quality carbon keeps the rim light and stiff, in an understated unidirectional finish with tonal branding only.
4D drilled spoke holes. The holes are drilled to the spoke path, which takes stress off the nipple and spoke as the wheel comes up to tension.
38mm deep section. A deep carbon profile for a stiff wheel, backed by a 2 year warranty against manufacturer defects.

Specifications

Tyre size: 20x1-1/8 to 20x1-3/8 (451x23mm ETRTO)
Material: Toray T700 carbon fibre
Finish: UD (unidirectional), tonal branding near the valve hole
Hole count: 28H
Rim width: 23mm
Rim depth: 38mm
Note: ERD 391mm. 2 year warranty against manufacturer defects.

Spoke calculator

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Hub spacing locknut to locknut, 100 front or 110 rear on most BMX mm Same both sides front hubs, or matching flanges

Flange diameter spoke hole centre to the opposite hole centre. The drive side is the driver side, left or right hand drive alike, and is usually the bigger flange

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