4ZA Cirrus Seatposts

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Product Description

The 4ZA Cirrus seatpost provides the comfort and stiffness at an affordable price. Designed and tested in the real world lab of Belgium.

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1986 Trek 520 Cirrus questions.

I have been making up a list of new bikes that I am considering buying. On that list is a Trek 520. I ended up buying a 1986 520, I figured I could find out if I really like that 520. My question is has the frame geometry changed from 86 to 2011? Will the 86 tell me if I will like a 2011 or no ... Read More »

Cirrus, Utopia or 7500FX???!!!!

I am going crazy trying to decide which ride would be best for me. I think the Fisher and the Trek are going to be neck and neck, but the Cirrus seems a different breed, thinner tires, faster ride. But, I want to be able to strap one of my kids on the back for the occassional ride while still being ... Read More »

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