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916 NW 21st Avenue
Portland, Oregon 97209

503-222-2851

21st Avenue Bicycles specializes in road bike sales, service and repairs. Located in NW Portland, Oregon, the shop can help you find the perfect bike for your ride. Bike commuting, road biking, racing or the casual cruise. 

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Our Diary, Our Weblog, Our Blog, Our Heart of Hearts

They Fix #1: Mr. Knobby

park chambers

Mr. Tuffy has nothing on Mr. Knobby, the new tire liner innovation.

Mr. Tuffy has nothing on Mr. Knobby, the new tire liner innovation.

It has been said that epiphany whispers to us like angels from heaven.  Other times, inspiration barks at us like junkyard dogs.  When your kid pops a flat for the umpteenth time and threatens to hijack the ipad instead of playing outside, you scramble for a solution.  So you grab your garden shears and whatever old worn out tire you've got in the garage and make yourself a textured tire liner.  We salute you mothers, fathers and extended family of invention.          

"They Fix" is our new series highlighting other people's innovations, workarounds and bike hacks we see here in Portland.  Also, look for our upcoming companion posts "We Fix" to see how we do bikes here at 21st Avenue Bicycles.