Introducing Mash SF lastest Frameset the Mash AC-1 Gamma Frameset.

MASH AC-1 Frameset. Built with MASH Columbus Airplane aluminum and MASH original monocoque carbon fork.
Finished with smooth weld technology
Includes a MASH low profile sealed headset
31.8 seat collar included
Stainless Steel Dropout plates
Both frame and fork are drill-able to mount front and rear caliper brakes
27.2 seat post
English Bottom Bracket
1 1/8 to 1 1/2 tapered headtube and drop in headset.

Order Online @ Shop.MashSF.Com

MASH original monocoque carbon fork
MASH AC-1 Geometry


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What is a Fixed-Gear Bicycle?

The fixed gear bicycle he oldest and simplest type of bicycle is the "fixed-gear" bicycle. This is a single-speed bike without a freewheel: that is, whenever the bike is in motion, the pedals will go around. You cannot coast on a fixed-gear machine.

Many track bicycle any enthusiastic cyclists ride such bicycles by choice, at least part of the time. Why would anybody do that? It is not easy to put into words. There is an almost mystical connection between a fixed-gear cyclist and bicycle: it feels like an extension of your body to a greater extent than does a freewheel-equipped machine. If you are an enthusiastic, vigorous cyclist, you really should give it a try.

There are many reasons, including: Fun, Fitness, Form, Feel & 'Ficciency!

by Sheldon "Coasting Is Bad For You" Brown