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In Stock & Ready To Ship — XT/Ultegra RT-MT800 Disc Rotors
Challenge Grifo 33 Open Cyclocross Tire Black/Tan - 700c x 33mm
Challenge Grifo 33 Open Cyclocross Tire Black/Tan - 700c x 33mm
Black/Tan - 700c x 33mm
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Challenge Grifo 33 Open Cyclocross Tire Black/Tan - 700c x 33mm
Challenge Grifo 33 Open Cyclocross Tire Black/Tan - 700c x 33mm

Challenge Grifo 33 Open Cyclocross Tire

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The Challenge Grifo Open tire combines a tried and true tread pattern with the versatility and ease of use of a clincher that's perfect for racing and training. At 300 threads per inch, this tire is remarkably supple for a clincher. Low profile knobs are great on fast grass courses and hard packed gravel/dirt, but aggressive enough for mud. If you could only have one clincher for the entire season, the Challenge Grifo would be a great choice.

Note: This tire is somewhat confusingly labeled as an 'Open Tubular.' It fits standard clincher rims.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.

Weight: 355 grams

Mfg PartNum: 00603 

Wheel Size: 700C/29" (ISO 622) 

Tire Width: 33mm (1.3in) 

Tire Type: Clincher-Folding 

Threads Per Inch: 320 

RimSize: 622 mm

Width: 33 mm

ISO (ETRTO) Size: 33-622 mm

Min Pressure: 30 PSI

Max Pressure: 90 PSI

TPI: 300 TPI

Made in: Thailand 

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Reviewed 11/15/2021
by Bradley
Spokane
Overall Rating
Great all around cross tire

Fast tire on hard pack and grass. Not stellar in the mud or sand, but still steady on gravel rides. A mate pairs this with a mud tire up front but I'm running them front and rear.

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Reviewed 8/12/2019
by Anonymous
Overall Rating
0 of 1 customers found this review helpful.
Grippy and fast. Comfortable!

5 stars

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Articles will open in new tab.

A guide to bicycle tire sizes, both standard on newer bikes and common on older bikes.
An introduction to cyclocross tires.
Understanding older bicycle tire sizes.
A useful chart for determining the tire size you need for your bicycle.
Tire Tips   
Tips for proper bicycle tire mounting and tire safety.
A guide to understanding tire width.
A guide to understanding bicycle tire tread patterns and what you should look for.

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