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The Laurel Cyclery is open for pick up of completed repairs and online purchases of bikes, accessory and parts. Curbside walk-up service for in-stock items is also available. Repairs, tune ups, and safety checks are done only through scheduled appointments (see our website for more information).

Please note that due to high demand, there's a 10-14 day turnaround on assembly of bicycle purchases. We will reach out to folks to schedule bike pick ups. Please email us to confirm that your bike is ready for pick up.

Repair priority is extended to essential workers, immunocompromised people and/or houseless folks. If you fall into one of these categories, or have a unique situation that defies category, please contact us at the shop or laurelcyclery@gmail.com.

Continental Grand Prix 4000 (700c, Folding)

Continental Grand Prix 4000 (700c, Folding)
  • Color: Black/Blackwall
  • Color: Black/Blackwall
  • Color: Metallic Silver/Blackwall
  • Color: Blue/Blackwall
  • Color: Red/Blackwall
  • Color: Yellow/Blackwall
  • Color: Conti Yellow
$59.95
Please select options
No shipping on this item. Bikes require 10-14 days for assembly before pickup. Parts and accessories are usually available for curbside pickup immediately.

Details

One of the favorites of the Pro peloton, Conti's Grand Prix 4000 brings a host of innovations never before seen in the world of bike tires. The tread pattern has been moved to the shoulders to increase traction in the corners. Tread wear indicators show the wear rate of the tire, eliminating guessing. The ultimate highlight however, is the use of Vectran. It's a polymer membrane that offers puncture protection and reduces rolling resistance, all at a race-ready weight. Also, the Black/Blackwall, Black/Transparent, Black/Reflex and Conti Yellow versions also contain Continental's Black Chili Compound for improved wear, traction and rolling resistance.

Continental's Black Chili rubber compound significantly improves wear, traction and rolling resistance through the use of carbon nanotechnology — microscopic carbon particles in the rubber. These mold better to the ground and have more points of contact to give the tire more grip. And, because the compound matrix is formed by more particles, which are connected more tightly with each other, the tire lasts longer. Plus, the smaller particles are more flexible, too, which improves rolling resistance.

Vectran Breaker is a synthetic fiber based on the natural model of spider silk. Processed into a multi-strand thread, it's lighter, more flexible and protects more efficiently against cuts than a comparable nylon layer. It also does not affect the tire's rolling resistance.

When these circular tread wear indicators disappear, it's time for a new tire.

Part Numbers

Option UPC MPN Store SKU
Black/Blackwall / 700 x 20c 4019238310955 118356
Metallic Silver/Blackwall / 700 x 23c 4019238311013 118487
Blue/Blackwall / 700 x 23c 4019238319651 118499
Red/Blackwall / 700 x 23c 4019238319699 118520
Yellow/Blackwall / 700 x 23c 4019238319712 118521
Black/Reflex / 700 x 25c 4019238319736 118522 10455
Black/Transparent / 700 x 23c 4019238319637 118498
Conti Yellow / 700 x 23c 4019238319675 118500

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