The SD Race Rim 20 x 1-3/8 (Non-braking), a budget-friendly black bicycle rim with 36 spoke holes designed for disc brakes, is displayed against a white background.

Highlights

36 hole, 20 x 1-3/8
Non-braking version
Double wall build
331g per rim

Description

The SD Race Rim is a 20 x 1-3/8 rim drilled 36 hole, so it laces up to a standard 36 hole race hub. This is SD's non-braking version, which makes it a match for a disc brake wheel build.

It is a double wall rim measuring 22.7mm wide with a 19.5mm side wall height, and each rim weighs 331g. The ERD is 429.6mm, so you can work out spoke lengths before you start lacing.

Features

36 hole, 20 x 1-3/8. A 36 hole drilling in the 20 x 1-3/8 race size, so it laces to a standard 36 hole race hub.
Non-braking version. There is no brake surface on this rim, so it is built for a disc brake wheel rather than rim brakes.
Double wall build. The double wall construction adds strength for gate starts and hard landings on a race bike.
331g per rim. At 331g it keeps rotating weight down, which helps the bike pick up speed off the gate.
ERD listed at 429.6mm. SD publish the ERD, so you can calculate spoke lengths before you order them.

Specifications

Wheel size: 20 x 1-3/8
Hole count: 36
Rim width: 22.7mm
Rim depth: 19.5mm side wall height
Brake surface: None, non-braking
Weight: 331g
Note: Double wall. ERD 429.6mm.

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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

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