Positz English Thread Bicycle Bottom Bracket Shell – 1.38 BSC x 68mm x 40mm

Name: Bottom Bracket Shell - English Thread Raw | Mr Cycling World
Brand: Positz
SKU: PSTZ-3057
Price: 19.95 AUD
Availability: OutOfStock
Rating: 5.00 (7 reviews)

Rated 5.00 out of 5 based on 7 customer ratings

(7 customer reviews)

$19.95

Machined BB shell.

Out of stock

Need it fast? Express shipping is available on most orders (excludes CO2)
Aussie stock: Ships daily – usually dispatches within 1–3 business days.

The Positz English Thread Bicycle Bottom Bracket Shell is a high-quality component designed for custom-made bicycle frames, restorations, indoor ergo bike projects, and other similar applications. It provides a sturdy and reliable foundation for the bottom bracket assembly of a bicycle.

Key Features:

English Thread: This bottom bracket shell features an English thread, which is a commonly used threading standard for bicycle bottom brackets.
Dimensions: The bottom bracket shell has a diameter of 1.38 inches (35mm) and a length of 68mm. The outside diameter of the shell measures 40mm.
Material: Made from raw machined steel, the bottom bracket shell offers durability and strength for long-lasting performance.
Thread Type: The shell is equipped with both left-hand English thread and right-hand English thread, allowing for easy installation and compatibility with various components.
Weight: The approximate weight of the bottom bracket shell is 175g, ensuring it adds minimal extra weight to the completed bike.
Origin: The Positz bottom bracket shell is manufactured in Taiwan, known for producing high-quality bicycle components.

Whether you’re building a custom bike frame or restoring an old bicycle, the Positz English Thread Bicycle Bottom Bracket Shell provides a reliable and compatible solution for your bottom bracket needs. Its durable construction and precise threading make it a suitable choice for various cycling projects.

Brand	Positz
Suits Bike Type	Mountain Bike (MTB)

7 reviews for Positz English Thread Bicycle Bottom Bracket Shell – 1.38 BSC x 68mm x 40mm

5.0

Based on 7 reviews

5 star	100	100%
4 star		0%
3 star		0%
2 star		0%
1 star		0%

1-7 of 7 reviews

Hannah M.
Verified owner

Featured Review

23 July 2021

Extremely fast shipping!! Item bought one day and received down in Tassie the next!! The threaded shell is absolutely brilliant!! I’m building a mountain bike out of timber from scratch, and this is the perfect component for the BB to fit in to, it was just what I was after! Very, very happy with purchase!!!

(1) (0)
Ashley Hayes
Reviewer

9 April 2025

Great quality

(0) (0)
Mick Skinner
Verified owner

20 March 2025

Really good quality, very happy and such rapid response
Thank you

(0) (0)
Michael Lane
Verified owner

23 November 2023

As described fast delivery

(0) (0)
+infidelKevin Henderson
Verified owner

13 October 2023

Fantastic value, good quality. I couldn’t have made it any cheaper with my lathe. Very convenient

(0) (0)
Johan Jacobsz
Verified owner

20 February 2020

5 star service quality item efficient helpful seller

(0) (0)
Phillip Howarth
Verified owner

13 January 2020

Correct item

(1) (0)