Specialized Sirrus Pro - SS Conversion
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Senior Member
Joined: Jun 2020
Posts: 156
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From: Alberta, Canada
Bikes: Bianchi Alfana, Specialized Hardrock, Specialized Sirrus Pro SS Conversion
Specialized Sirrus Pro - SS Conversion
This is my first single speed bike and the conversion was a fun winter/COVID project. Used what I could and purchased most parts from MEC that I needed.
Started with a Specialized Sirrus Pro from possibly 2001 - picked up on Facebook Marketplace for $10 (was a completed unusable Frankenstein build).
Gear: 42T/17T - rebuilt the back wheel (after breaking a spoke) to achieve a good chainline with dish.

Before the work - $10 find.

The logo.

Side profile of bike.

The goods

42T and a free crankset from amazon because the thought they lost the order.

From the front-side

From the rear-side

From the rear the gear

Front profile
Started with a Specialized Sirrus Pro from possibly 2001 - picked up on Facebook Marketplace for $10 (was a completed unusable Frankenstein build).
Gear: 42T/17T - rebuilt the back wheel (after breaking a spoke) to achieve a good chainline with dish.

Before the work - $10 find.

The logo.

Side profile of bike.

The goods

42T and a free crankset from amazon because the thought they lost the order.

From the front-side

From the rear-side

From the rear the gear

Front profile




