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$50 98% $49
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In a Nutshell

Sprockets are awesome.

The Fine Print

Promotional value expires Jan 1, 2017. Amount paid never expires. For more information about redemption please visit: http://www.grouponworks.com/redemption Enjoy your Groupon feature! Not valid for any actual product. Please call Andrew Smreker at (312) 242-2082 to with any app related issues. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

Acme Gadgets and Sprockets - Multiple Locations: DUPLICATE DELETE

A sprocket is a profiled wheel with teeth that mesh with a chain, track or other perforated or indented material. The name 'sprocket' applies generally to any wheel upon which are radial projections that engage a chain passing over it. It is distinguished from a gear in that sprockets are never meshed together directly, and differs from a pulley in that sprockets have teeth and pulleys are smooth.

Sprockets are used in bicycles, motorcycles, cars, tracked vehicles, and other machinery either to transmit rotary motion between two shafts where gears are unsuitable or to impart linear motion to a track, tape etc. Perhaps the commonest form of sprocket is found in the bicycle, in which the pedal shaft carries a large sprocket-wheel which drives an chain which in turn drives a small sprocket on the axle of the rear wheel. Early automobiles were also largely driven by sprocket and chain mechanism, a practice largely copied from bicycles.

Merchant Location Map
  1. 1

    Goose Island

    600 W Chicago Ave

    Suite 620

    Chicago, Illinois 60654

    312-870-5310

    Get Directions
  2. 2

    Near North Side

    600 W Chicago Ave

    Suite 620

    Chicago, Illinois 60654

    Get Directions

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