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Forum: Mini-Challenges, Games, and Photo Stories 04-24-2016, 05:47 PM  
Dedicated to the lovers of bicycles
Posted By wombat2go
Replies: 2,082
Views: 255,439
A good explanation for the not-so-tech bikers.
I only ride a clunker these days with 21 "speeds". It was explained to me a few years ago and I continue to follow it:
In "1" we should use from lowest to about halfway.
In "2" we should use the midway 4 or so.
In "3" we should use the highest 4.
Forum: Mini-Challenges, Games, and Photo Stories 04-15-2016, 05:30 AM  
Dedicated to the lovers of bicycles
Posted By wombat2go
Replies: 2,082
Views: 255,439
Hi Richard,
I recently had to learn about it!

I made a hub from 6061 and purchased Sun aluminum rims and WheelMaster 2 mm stainless spokes from Niagara Cycle.

It was a fairly complicated job to get the spoke length and hub pitch circle,
even though I just used the "one cross" spoking which is OK for this tricycle.

The on-line spoke calculators do not consider the inner rim dimensions so they gave incomplete data,
and I made a mock-up to get the hub dimensions right before machining.
https://app.box.com/s/h464ooyqrgi3eumx3nfxqhdov1p1w0px
https://app.box.com/s/jb3hycdz55bx18we48bb7ciul9jxnh6c

https://app.box.com/s/mi94bxivahw6gtuv99knwxozc01c02gi

The finished wheel was within about 10 thou inch of runout.
It has been on the road for a few weeks so I will adjust the spokes again soon.
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