Wednesday, June 1, 2022

Replacing a stripped out spoke on the bicycle...

Ordered a replacement spoke (eBay).
Came in the mail.

On the left is a replacement spoke I already had.
It's too short for the rear wheel on the non-drive side.
The bike uses three different length spokes, for the (1) front wheel, (2) rear wheel drive-side & (3) rear wheel non-drive-side.
The one I need to replace is a rear non-drive-side spoke.

The silver spoke is a replacement that I previously installed but the threads on the nipple stripped.

Stripped nipple on the left.
New spoke on the right.


The other end of the spoke is a ball shape.


This is where the nipple threads in.

The ball-end of the spoke slips in place here on the hub.

Started threading in the nipple.
The threads are opposite to normal (reverse threads).

The spoke is too long.
The spoke won't get tension until the nipple is threaded in too much.
In this picture, the nipple is way too deep into the hole in the rim.
This is wrong...

This is another spoke on the same wheel with an original spoke.
Notice that the nipple is not too deep in the hole.

Measuring the length of the stripped spoke.
Using this small machinist's square as a stop to position the spoke at the end of the scale.

The silver spoke is about 308 mm long.
The correct length should be about 301 mm.

This is the basic measuring setup.

Just for reference, measured the length of the short spoke I already had.


It's about 291 mm long.  This might be the right length for either the front wheel spoke or the drive-side rear wheel.

Since the new replacement spoke is too long also, I ordered the right length one (again on eBay).
Waiting for it to come in the mail.
Hopefully the new replacement will be the right length...

 

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