# Head bearing size on mark 3

**URL:** <https://www.stridaforum.com/t/head-bearing-size-on-mark-3/461>\
**Category:** Strida Problems and Answers\
**Created:** [July 2, 2010, 9:58pm UTC](https://www.stridaforum.com/t/head-bearing-size-on-mark-3/461 "2010-07-02T21:58:52Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![simbo](https://www.stridaforum.com/letter_avatar_proxy/v4/letter/s/9de053/32.png) [@simbo](https://www.stridaforum.com/u/simbo)\
**Post date:** [July 2, 2010, 9:58pm UTC](https://www.stridaforum.com/t/head-bearing-size-on-mark-3/461/1 "2010-07-02T21:58:52Z")

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Hi All,

Does anyone know the number for the lower head bearing? I know that Strida refer to them as 100-03 and 100-04, but what is the actual bearing number?

I ordered a pair of 6802’s, which is the size for the top bearing, but then noticed the bottom one is bigger. I’m now feeling rather dim for not checking before wrecking it whilst getting the old one out!

Can a friendly user help me out by squinting a bit and reading the number from the seal please?

Many thanks in advance,

Simbo

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