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Hollowtech II bottom bracket spacers explained
Should you put spacers on both the right and the left-hand side cups? How many spacers and which thickness?
I tried answering those questions along with explanations why.
CONTENTS:
00:00 Introduction
01:34 3 notes
03:07 3 goals
06:54 BB shell width and diameter
12:05 Threaded bottom brackets
15:47 2.5 mm "default" right spacer
18:17 Road bike BB cups
21:18 MTB BB cups
23:54 How to check if it's all good
27:17 Wider (boost) frames and press-fit
29:21 Catches and gotchas
Useful LINKS:
Please use the BikeGremlin forum if you have any questions or comments (YouTube sucks at dealing with comments):
https://www.bikegremlin.net/
Indexed list of all my videos (sorted by categories, with tags, searcheable):
https://www.bikegremlin.com/youtube/
How to install Shimano Hollowtech II bottom bracket - video:
https://www.youtube.com/watch?v=0uS71UrROMc
What is a bicycle chainline and how to measure it? - video:
https://www.youtube.com/watch?v=NaebMnRH7Zo
Bicycle chainline - article:
https://bike.bikegremlin.com/1755/bicycle-chainline/
Accurate vs precise, digital vs analogue - Calipers, how to use them? - video:
https://www.youtube.com/watch?v=MeOaLwsSO5c
Accuracy vs Precision - article:
https://bike.bikegremlin.com/8374/accurate-vs-precise/
Threaded bottom bracket standards, thread pitches, and diameters - article:
https://bike.bikegremlin.com/1634/bicycle-bottom-bracket-standards-explained/
Threadless (press-fit) bottom bracket standards and dimensions - article:
https://bike.bikegremlin.com/1652/press-fit-bb/
T47 threaded bottom bracket standard:
https://bike.bikegremlin.com/1672/new-threaded-bb-standard-t47/
Anti-seize (mounting) pastes and greases - video:
https://www.youtube.com/watch?v=Xb7NEbc3sUI
Mounting and anti-seize pastes - article:
https://bike.bikegremlin.com/7172/anti-seize/
A list of BikeGremlin websites and channels:
https://www.bikegremlin.com/
List of all the BikeGremlin videos, sorted by categories:
https://www.bikegremlin.com/youtube/
Camera: my better half :)
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