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Grifo Pro Tubular Tire

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This hand-made tubular cross tire features a versatile tread design that has proven its merits in World Championships. Great traction in muddy conditions without sacrificing speed. Black tread with natural sidewall. 300 TPI Super Poly casing. Latex tube. Anti-puncture protection system.

The Challenge Grifo Tubular is available in 700c x 33mm (33-622 ISO). 420 grams. Black/Natural.

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%.


Tire Type: Tubular 


Wheel Size: 700C/29" (ISO 622) 


Application: Cyclocross 


RimSize: 622 mm


Width: 32 mm


ISO (ETRTO) Size: 32-622 mm


Min Pressure: 30 psi


Max Pressure: 90 psi


Threads Per Inch: 300 tpi


Made in: Thailand 

700c x 33mm

Weight: 350 grams

Tire Width: 33mm (1.3in) 

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
One season tire....great riding tire.
by Bobby
Competitive Racer

The best riding and feel of any CX tire I have used. Every tire I have used the tread has seperated from the casing. Lucky to get one season out of them.

Reviewed 10/10/2019
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A Contender
by Mike
Competitive Racer
4 of 4 customers found this review helpful.

Before reviewing the specific tread pattern, Challenge makes high quality tubies for cross. The pro edition (what is being reviewed) and team edition (white sidewall, more expensive) are both very well built. They are round, mount easily, and overall have no base tape issues. They have a generally good lifespan and are a good value at the price. The suppleness is highly subjective to critique but you are not going to lose a race because of the suppleness of these tires )

The primary issue with the Grifo is the tread pattern, it is no as good as the MXP or FMB SSC. The MXP has better traction and sheds mud faster. I have had 3 unexplained slips on the rear wheel this season during dry conditions that never happened when using the MXP. For a true all around tread the MXP is king. If you are wanting to stay with Challenge the baby limus is a better option as you get a bit more bite with better mud shedding abilities.

Tip use aquaseal on the sidewalls (1-2 coats) before mounting, it will make a significant difference in the lifespan of the tire.

Reviewed 10/20/2017
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Mega Confidence in these Tires
by Rcsolak
Competitive Racer
Hamilton Square, NJ
1 of 1 customers found this review helpful.

Love these. Sticky compound, tough treads - that really instill confidence in most conditions - minus extreme. You'll be flying in the morning dew races when the corners are a bit slick, and loving the sticky compound in the afternoon when the course turns to dry dust.

Reviewed 9/9/2013
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Great tires!
by Anonymous
Cycling Enthusiast
Bay Area

These tires are everything you've probably read & heard about them plus more. My one piece of advise, put them on & pump up wo gluing for a couple days to allow the tires to stretch a bit!

Reviewed 10/25/2012
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