X
Mon-Sat 8am-5pm PT
FREE SHIPPING ON ORDERS OVER $50More info
JOIN OUR EMAIL LISTSign Up
Bike Tires Direct logo. Link to homepage.
Serving cyclists
since 2002
CLICK HERE to join our Email List and get 15% off your first order*
*Restrictions Apply. Click for details.

Crumbs

Tires and Tubes > Road Tires > Gravel Tires

Product Images

Challenge Gravel Grinder Race Tire Black
Challenge Gravel Grinder Race Tire Black/Tan
Challenge Gravel Grinder Race Tire
Black
Click Here for Larger Image
Challenge Gravel Grinder Race Tire 2
Challenge Gravel Grinder Race Tire 5
Challenge Gravel Grinder Race Tire 7

Challenge Gravel Grinder Race Tire

(64)

Pricing and Order Section

Mfg PartNum:
SALE: $48.74
MSRP: $64.99
That's 25% off
In Stock
Ships Free!
Earn $1.47 in VIP credit. Click to Learn More.
147
POINTS
This color/style is not eligible for VIP points
Price matches are is not eligible for VIP points
 

Description

With an eye towards long demanding gravel rides like the Unbound, Trans Iowa, and others, Challenge presents the Gravel Grinder Race Tire.

While many of Challenge's previous tires are right at home on gravel, they wanted this one to be specially tailored for longer, more demanding rides where tire width and flat protection are at a premium. To this end, they gave the Gravel Grinder Race their Double Puncture Protection System (PPS2) and spec'ed it with a generous 38mm width, resulting in great durability and dependability with comfort and stability on uneven and loose terrain. With file tread in the center, the Gravel Grinder roles smoothly, but still grips turns thanks to its more aggressive shoulder knobs.

The Gravel Grinder Race Tire is available in 700c x 38mm (38-622 ISO). Inflation range 45-80 PSI. 120 TPI casing. Claimed weight of 408 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%.

Specifications

Wheel Size: 700C/29" (ISO 622) 

Threads Per Inch: 120 

RimSize: 622 mm

Width: 38 mm

ISO (ETRTO) Size: 38-622 

Max Pressure: 80 PSI

Made in: Thailand 

Black/Tan - 700c x 33mm Tubeless Ready

Weight: 355 grams

Tire Type: Tubeless Ready 

Tire Width: 33mm (1.3in) 

Mfg PartNum: 02049 

Black - 700c x 33mm Tubeless Ready

Weight: 355 grams

Tire Type: Tubeless Ready 

Tire Width: 33mm (1.3in) 

Mfg PartNum: 02044 

Black - 700c x 38mm Tubeless Ready

Weight: 375 grams

Tire Type: Tubeless Ready 

Tire Width: 38mm (1.5in) 

Mfg PartNum: 02004 

Black/Tan - 700c x 38mm Tubeless Ready

Weight: 375 grams

Tire Type: Tubeless Ready 

Tire Width: 38mm (1.5in) 

Mfg PartNum: 02009 

Black - 700c x 42mm Tubeless Ready

Weight: 425 grams

Tire Type: Tubeless Ready 

Tire Width: 42mm (1.7in) 

Mfg PartNum: 02014 

Reviews

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
(48)
(8)
(5)
(1)
(2)
(75%)
(13%)
(8%)
(2%)
(3%)
Reviewed 4/15/2024
by ChicagoBiker
Competitive Racer
Chicago, IL
Value Rating
Overall Rating
many flat with not many miles

Bought these expecting a reliable set of tires but found out that they are very fragile on anything other that road or packed smooth dirt. Had many flats on these things with not even 200 miles on them and they were difficult to set on my wheels. I bought these for an upcoming gravel race but not confident enough to use, I'm scrapping these and getting something much more durable.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 2/9/2024
by Anonymous
Competitive Racer
Earth
Value Rating
Overall Rating
almost like Chicane

This tire is almost like Chicane, I picked the same size as my CX racing size . Center is wider and "fangs" are moved out. For CX they are trickier on slippery but I like them this way for training. From my point of view they seem to roll better than Chicane. time will tell how rest of the design is able to handle the abuse.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 8/8/2018
by Anonymous
Central Indiana
Overall Rating
5 of 6 customers found this review helpful.
Excellent budget tires

I've got a few hundred miles on these tires now-a pretty even mix of good aged chip & seal, fresh loose chip & seal, crappy patched and potholed chip & seal, and plush marble-sized river-rock gravel. I don't notice any real rolling resistance on pavement, and they stick like Velcro even in the really deep gravel. I haven't climbed much, but the bit of climbing I've done was fine and more importantly I had full control on the descent. I am running them with tubes at 55ish psi, haven't had any flats (punctures aren't likely here, no thorns or sharp rocks) and they do a pretty good job at smoothing out all but the worst bone-shakers. I'd definitely recommend these as a good all-around tire.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 10/10/2022
by Nick H
Competitive Racer
Southern California
Value Rating
Overall Rating
6 of 6 customers found this review helpful.
Not for hookless rims

Hard to review these tires as they looked just the ticket for me, I was looking for a light, fast hard pack tire. Unfortunately I was about to mount them and on the sidewall in barely visible writing it says not for hookless rims. As I have hookless rims I had to return them. This was not stated on the website description or anywhere I could see. Why manufacturers hide this kind of information is beyond me, continental were the same with their road tires for a while too. Disappointing. Buyer beware.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 9/23/2022
by Anonymous
Overall Rating
4 of 9 customers found this review helpful.
Description is incorrect. There's no puncture protection.

So to start these tires are not described correctly on this website. There is no double puncture protection and the max psi is 53 not 80. The sidewalls are extraordinarily weak or I got a defective product.

Literally day one of riding on roads the sidewall got a puncture that can't even be seen by eye, and rendered the tires worthless since you can't really plug a sidewall. It's a shame that the tires are terrible and that I was misled by the description. Avoid at all costs.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 5/16/2017
by Kahola Kahuna
Cycling Enthusiast
Flint Hills KS
Value Rating
Overall Rating
25 of 27 customers found this review helpful.
Go To Gravel Tire

I live in Kansas and am from Emporia, the heart of Dirty Kanza and Flint Hills territory. I have used these tires thru 3 Dirty Kanzas, 2 Almanzos, 1 epic fail at Landrun(mud and weather, tires were fine) and countless other rides and races through Flint Hills Gravel. Two flats, both were pinch flats and totally my fault for running too low of pressure under my 190 lbs. About 53-55 PSI rear and 48 PSI front seems to keep me out of pinch flat trouble even in the Flint Hills Gravel. Rolling resistance is minimal on hard pack, yet traction remains great in the loose stuff. They do tend to wear a little fast, but at the price and weight well worth it. As a side note, on the two flats I did have, they go on and off the rims using no levers for a quick change under the stress of race conditions. In gravel cycling the tire of the moment always seems be in every conversation, but I have found no need to experiment or go tubeless with these tires around and will continue to run the Gravel Grinders.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 1/11/2017
by TK
Ohio
Overall Rating
3 of 3 customers found this review helpful.
Worked well for me

Got these for my CX bike and a gravel race. Running them with latex tubes. Race had some single track with hills and some mud. Surprised how well the gripped. Have now been running them on pavement and see that my average speed is not much slower than on my road bike. No flats. Very pleased.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 3/14/2022
by JB
Cycling Enthusiast
San Diego, CA
Value Rating
Overall Rating
2 of 2 customers found this review helpful.
Comfortable, grippy gravel tire for SoCal conditions

I use these tires set up with Vittoria Gravel Inserts and Orange endurance sealant - set up was easy, they hold pressure and do not leak sealant with this set up. On 24mm internal rims, these tires measure 47mm width and have a high volume with low weight. I can run lower pressures which makes for a grippy and comfortable set-up. They seem to roll as fast on the road as my previous WTB Byway 40mm (which were more like 38mm). In short, it seems like all upside: lightweight (especially compared to other tires in the *actual* size of 47mm), fast rolling, grippy, comfortable!

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 6/6/2023
by Dave
Cycling Enthusiast
Truckee, CA
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Thin sidewalls

Most of my rides on these tires have been great. The 42s have good volume, good traction, and great rolling speed on and off road.

That being said, the 2 times I've raced on these tires I've gotten flats in the sidewall. It's a huge bummer because I've liked these overall, but I can't trust them to perform when it matters most.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 10/4/2014
by Bnystrom
Cycling Enthusiast
Nashua, NH
Value Rating
Overall Rating
23 of 23 customers found this review helpful.
Lives up to it's name admirably!

I needed tires for a dirt road event in Vermont and after reading a lot of reviews, I settled on the Gravel Grinders. I wanted something wide, with reasonable rolling resistance on paved roads and hard-packed dirt, but aggressive edge lugs for cornering in looser conditions. This tire has all of that and excellent durability, too. I couldn't be happier with their performance.

FYI, at 174, I ran these at 50/55, frontrear and that was perfect on a hard-packed course. My 110 girlfriend ran them at 30/35.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 7/18/2014
by Chicago J
Cycling Enthusiast
Chicago IL
Value Rating
Overall Rating
18 of 21 customers found this review helpful.
Perfection for commuter-training or Outright Gravel Road Racing!!

Prior to this I have been racing on Challenges high end open tubular Grifo XS in 33mm and soon its high end open tubular Gravel Grinder in 700x36mm tire. For training and commuting I do not want to burn through [$] high end tires when I can burn through the same tread for less than half the money and have an even tougher casing than the open tubular design saving them for race day! For training I have been riding every type of nail file tread pattern I could buy, My favorite up until this tire was released was in this order, Clement Las 33mm (actually a 36mm)for fast gravel country roads and finer gravel, or for rougher gravel Clement USH 35mm, Vittoria Pro XN 32mm(actually 30mm), Schwalbe Sammy Slick 35mm (actually a 31mm), and for rougher gravel and dirt Kenda Happy Mediums in 35mm or 40mm (both slightly undersized as well. I hope that Challenge continue to make Vulcanized Versions of its already top OT tires like The Grifo Pro now, as I wish they would make a Grifo XS 32mm vulcanized soon for my wife as this is her favorite tire! Do your self a favor and get this tire, it is the best!

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 10/29/2021
by MK
Cycling Enthusiast
Western Massachusetts
Value Rating
Overall Rating
4 of 4 customers found this review helpful.
Excellent all round gravel tire!

This is my third set of these tires, I love them.

The first set were 33s, now I'm using the 38s. They are setup tubeless with Stan's Grail rims running at 40 psi rear, 38 psi front on a Trek Crocket (I'm about 170lbs).

I ride New England gravel roads, double track, cinder trails and single track and find the tires plenty grippy in all but the wettest conditions and tough enough for the bony single track sections. The tires have a supple ride feel and roll very well on those necessary paved sections that get to the next dirt segment.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 10/14/2021
by Anonymous
Competitive Racer
Spokane, WA
Value Rating
Overall Rating
2 of 2 customers found this review helpful.
Great Gravel Tire

In the Spokane area, the gravel routes are usually unpaved county roads and summer roads between fields. They can be loose dusty sand or washboards with gravel used for chip seal (without the oil seal), packed out mud, or just plain mud, all within a few miles. Throw in consistent and persistent 10-14 percent grades and you'll have your work cut out for you. These tires and their file like tread perform great in all of the conditions. I've even used them on some CX before fitting a narrower CX tires. I weight about 200 pounds and ride this around 45 psi (38mm) back and a few pounds lower in the front. Had one puncture, through the tread, that didn't seal up great, but that was no fault of the tire. Big holes are big holes. They also roll great on the tarmac.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 8/5/2021
by Matt B.
Daily Commuter
Boise, ID
Value Rating
Overall Rating
4 of 8 customers found this review helpful.
Terrible problems with Punctures, Flats, Tears.

Of all the Gravel Tires I've tried, these are hands-down the worst for punctures. I had punctures in the sidewall right out of the box. B.T.D. graciously replaced that. I bumped up one star because I had no problems setting them up for tubeless... but I had sealant spraying out of both tires the first time I rode on gravel, so tubes in them after that. Even running tubes with sealant, I averaged approximately 1 puncture per 5 miles of gravel. By 250 miles, (6 tubes, 15 CO2s) inspecting the center track of the tire shows numerous small cuts. I have /never/ had this issue on other gravel tires. The Sidewalls are thin and supple and vulnerable to cuts. The Center track has small nubs, low rolling resistance and is vulnerable to cuts and punctures. The side knobs provide decent traction cornering, as long as that sidewall doesn't get cut. I don't know what they were thinking, but by me gravel is made of rocks which frequently have sharp points or edges. I /never/ rode these tires "off road" and rode 90% on smooth pavement.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 11/27/2020
by Anonymous
Cycling Enthusiast
Boise ID
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
good traction, comfortable on road and gravel, problems with punctures

I have the MTB on the dirt so the gravel bike actually spends much more time on the road. Road performance is nice -- the mostly flat central tread is quiet and doesn't rob your speed on the pavement. Cornering on gravel and hardpack is great thanks to the corner knobs. 5 stars so far. But the few stretches of gravel I've had them on invariably ended in punctures -- I am now running tubes in both front and back. The pair of tires currently has about 150 miles on them, with less than 5 miles gravel, and I've had punctures in each. For a tire /named/ the "Gravel Grinder" I can't help but be dissatisfied.

My search for the "perfect" tire for my gravel bike continues.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 9/18/2020
by Jeff M
westchester, NY
Overall Rating
2 of 2 customers found this review helpful.
Excellent gravel tire for all conditions

This tire is outstanding in its ability to provide reliable traction on loose gravel, hard pack, single track and pretty much anything you throw at it while somehow feeling road race tire fast and supple on pavement. It�s been literally perfect for everything I do on it. I highly recommend this for anyone seeking a gravel/cyclocross tire you never need question or think about. I don�t even bother changing it when taking the gravel bike on a road ride as it rolls fast. A great choice after many disappointments prior.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 1/16/2020
by Anonymous
norcal
Overall Rating
Nice Tire

These tires are a good choice. They set up easily. I have used them for a few dry CX races and run them at low pressure and they perform well. They are also nice on a graveldirtpavement ride at a higher pressure of 35-40 psi. They roll well and have good cornering qualities. I have over 500 miles on them and they are wearing ok.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 5/8/2023
by Anonymous
New England
Overall Rating
Product as advertised.

Great for gravel, and not a hinderance on the road.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 10/8/2018
by Anonymous
Cycling Enthusiast
Enterprise, OR
Value Rating
Overall Rating
2 of 3 customers found this review helpful.
Good pavementgravel tires

After riding with these tires for a few weeks I am quite pleased. I ride probably 75% pavement and 25% gravel and appreciate the fast rolling qualities of this tire with ability to ride at a variety of pressures depending on conditions. So far so good!

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 7/20/2017
by runningisfree
Cycling Enthusiast
Wayne, PA
Value Rating
Overall Rating
2 of 3 customers found this review helpful.
Durable, versatile tire for all season use

I use on my cross frame which doubles as a commuter. I pump up tire to 65 psi and it gives a comfortable ride.

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

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. 1

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