Mon-Sat 8am-5pm PT
Bike Tires Direct logo. Link to homepage.
Serving cyclists
since 2002


Tires and Tubes > Road Tires > Gravel Tires

Product Images

Challenge Almanzo PRO Tire 700 x 33mm - Black/Tan
Challenge Almanzo PRO Tire 700 x 33mm - Black/Tan
700 x 33mm - Black/Tan
Click Here for Larger Image
Challenge Almanzo PRO Tire 5
Challenge Almanzo PRO Tire 6

Challenge Almanzo PRO Tire


Pricing and Order Section

Mfg PartNum:
MSRP: $79.99
That's off
In Stock
Ships Free!
Earn $3.20 in VIP credit. Click to Learn More.
This color is not eligible for VIP points
Price matches are is not eligible for VIP points


The Gravel Go-Getter

The Challenge Almanzo Pro Tire is named after the Almanzo 100 gravel race in Minnesota, making this a heavyweight all-terrain tire for use with road bikes. The Almanzo was designed specifically for gravel racing, featuring a file tread pattern that provides excellent grip with a wider, more forgiving profile for those bumpy roads. Each Almanzo Pro tire features Challenge's double puncture protection, offering the highest level of protection from slashes, tears, or other types of punctures.


  • ISO diameter: 622.
  • ISO width: 33mm.
  • SuperPoly casing.
  • Double PPS Protection.
  • 260 TPI
  • Claimed weight: 385 grams.

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: 385 grams

Wheel Size: 700C/29" (ISO 622) 

Tire Width: 33mm (1.3in) 

Tire Type: Clincher-Folding 

Threads Per Inch: 320 

700 x 33mm - Black/Tan

Mfg PartNum: 00524 


Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Reviewed 4/21/2021
by Disappointed
Cycling Enthusiast
Value Rating
Overall Rating
Good looking and Fast but Cut prone!

Bought these from Bike Tires Direct less than a year ago for a weekly trainer and occasional gravel ride entry. Very difficult to mount (pinched one tube on my first tire and took the second one to LBS to mount). Easier to re-mount after time on the rim. Fairly fast and comfortable tire with decent grip. Rolling resistance decline is noticeable compared to road tires they replaced. Biggest complaint is I got a flat on mile 11 and gash on mile 18 at recent gravel ride and DNF. The sidewalls have no puncture protection and are susceptible to rock cuts. I bought a replacement to give them one more shot but may have to try something different before entering another gravel race. I have only put around 500 miles on these and they have cost me several tubes and one tire already - expected more for what I paid!

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 8/7/2020
by NorCal Biker
Competitive Racer
Santa Rosa, CA
Value Rating
Overall Rating
Nightmare to mount

Mounted tires for 30 years without major problems. These tires however are a total nightmare to mount.

Pre-Stretching, heating up, Talcum powder....still unmountable on DT Swiss rims. Gave up after hours of trying.

All 4 tires went straight in the garbage. Even if I could have mounted them at home, on the trail in cold weather there is no way you can fix a flat.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 9/25/2020
by derekhski
Competitive Racer
Portland, OR
Value Rating
Overall Rating
No issues

Picked up a set of the Tan wall Pro Series version, Fun mixed surface and supple tire, 260 TPI

Rides really well for a great dry dirt, gravel, even cross legal at 33C Have larger tires for rough days.

No issues mounting, put them on some older American Classic 420's,, they are tight, all Challenge are.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 4/18/2020
by Anonymous
Cycling Enthusiast
Value Rating
Overall Rating
0 of 1 customers found this review helpful.
Do not buy

Im issuing a rare DO NOT BUY. I have changed many tires before but These are the first I that could not get mounted (Zipp 303 rims). After an hour of struggling to get one tire on I gave up, just way too tight. Figured if one flats on the trailroad I could never change.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 11/19/2018
by John McBurney
Overall Rating
1 of 1 customers found this review helpful.
Excellent Gravel Tire

Beautifully made open tubular. Very fast tools well. Grippy but sheds mud well.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 7/25/2019
by Colorado cyclist
Cycling Enthusiast
Overall Rating
1 of 1 customers found this review helpful.
One of my favorites so far, but extremely hard to mount.

Predominately road surface and chip and seal.

Was this review useful to you? Yes/No
Thank you for your feedback.

Mechanic's Corner

Articles will open in new tab.

A guide to bicycle tire sizes, both standard on newer bikes and common on older bikes.
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.
additional content loading
additional content loading
additional content loading

We are committed to delivering outstanding value and service to our customers, every day.
Try us today to see why so many of our customers come back again and again.

*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Fri). Orders over $50
are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details. 17

5741 NE 87th Ave (I-205 exit 23B) Portland, OR 97220 | 800-682-0570 | [email protected]