# minus 20 deg C

**URL:** <https://www.stridaforum.com/t/minus-20-deg-c/733>\
**Category:** Tips and Techs\
**Created:** [September 27, 2011, 5:36pm UTC](https://www.stridaforum.com/t/minus-20-deg-c/733 "2011-09-27T17:36:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![sillybunny](https://www.stridaforum.com/user_avatar/www.stridaforum.com/sillybunny/32/25_2.png) [@sillybunny](https://www.stridaforum.com/u/sillybunny)\
**Post date:** [September 27, 2011, 5:36pm UTC](https://www.stridaforum.com/t/minus-20-deg-c/733/1 "2011-09-27T17:36:01Z")

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Hi:  
The Strida manual specifies a minimum ambient temperature of  
minus 20 deg C (minus 4 deg F).  
It’s on the safety page.  
Does anybody know why?  
jh

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**Author:** ![Blackstridaaustria](https://www.stridaforum.com/user_avatar/www.stridaforum.com/blackstridaaustria/32/12_2.png) [@Blackstridaaustria](https://www.stridaforum.com/u/Blackstridaaustria)\
**Post date:** [September 29, 2011, 9:07pm UTC](https://www.stridaforum.com/t/minus-20-deg-c/733/2 "2011-09-29T21:07:12Z")

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Hi sillybunny,

I want to let you know that we do not ignore your question.  
Maybe nobody has an answer… 😒

My guess: possible stability problems of the plastic beltwheel and the seat mounting material at low temperatures?

Hej, snowriders, no idea?

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**Author:** ![Genuine\_S](https://www.stridaforum.com/user_avatar/www.stridaforum.com/genuine_s/32/21_2.png) [@Genuine\_S](https://www.stridaforum.com/u/Genuine_S)\
**Post date:** [October 1, 2011, 1:48pm UTC](https://www.stridaforum.com/t/minus-20-deg-c/733/3 "2011-10-01T13:48:38Z")

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If temp is (much) lower than usual / 20 deg C:

- Grease could become harder
- Viscosity of oil could become unexpected value
- Tire / tube could be more stiff
- Break wire could be less flexible
- Break disc / pad may not perform well, it takes longer to stop / slow down  
from technical / material point of view.

Above is general information, not Strida specific. In my best assumption, this could be kind of indirect disclaimer that company can not guaranty its performance under lower temp.

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**Author:** ![Bietrume](https://www.stridaforum.com/user_avatar/www.stridaforum.com/bietrume/32/16_2.png) [@Bietrume](https://www.stridaforum.com/u/Bietrume)\
**Post date:** [October 3, 2011, 8:02am UTC](https://www.stridaforum.com/t/minus-20-deg-c/733/4 "2011-10-03T08:02:10Z")

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Let’s not forget the Kevlar belt: its tension theoretically decreases together with the temperature due to the negative thermal expansion coefficient of the Kevlar cords.