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IB14: Michelin Sizes Up with 28mm Pro 4 Endurance Road Bike Tires

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Michelin Pro 4 28mm  (1)

Road tires are at an interesting state of development. Many riders are starting to trend towards wider rubber even on the road, but then the definition of road riding is evolving. Thanks to the growing popularity of “gravel” ride, races that include dirt roads, and more people taking the path less traveled, tires are often being subjected to new abuse. Already an ideal size for many gravel or dirt adventures, the 28mm tire has become a favorite since it will fit in many standard road frames and some caliper brakes adding a bit of additional capability.

In developing their new Pro 4 Endurance tire, Michelin wanted to offer a 28mm tread but also a durable tire that would keep flats at bay. To that regard the tire features a reinforcing layer that claims a 40% increase in puncture protection compared to the competition while a dual compound rubber provides long wear and excellent cornering grip.

Michelin Pro 4 28mm  (3)

Michelin Pro 4 28mm  (7) Michelin Pro 4 28mm  (6)

When mounted on a 17mm internal width rim, the 28mm Pro 4 Endurance is actually measuring 29mm which is a good sign for fans of larger tires. Using third party testing through Wheel Energy, the Pro 4 Endurance showed a 40% improvement in puncture-resistance compared to the unnamed main competitor. Called their Bi-Compound tread, the tire uses softer sidewalls to aid in cornering grip, but the harder center section is more wear resistant. The casing itself is made from 3 layers at 110 tpi, and Michelin’s HD Protection Bead2Bead reinforcing layer that is responsible for the addition in puncture resistance.

Weights and prices for the 28mm version are TBD, though the 23mm and 25mm versions weigh in at 225 and 245g respectively.

Michelin Pro 4 28mm  (4) Michelin Pro 4 28mm  (5)

Even though it’s not a new tire, the Michelin Wild Race’r Reinforced will now be available in a wider 2.25″ version in both 27.5 and 29″ wheel sizes. Originally thought of as an XC race tire, Michelin has found that riders like the tire as a dry conditions rear tire for Enduro racing so the larger, reinforced casings make sense.

bike.michelinman.com

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28 Comments
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Topmounter
Topmounter
9 years ago

I’m glad to see more performance x28 options becoming available. I’m currently running 700×28 Vittoria Rubino Pro’s and absolutely love the size for our local “mixed media” mountain roads.

Fred
Fred
9 years ago

Sounds like a great tire, IF it were tubeless otherwise it’s just another wide tire I can’t use.

mudrock
9 years ago

With municipal budgets being squeezed all over, roads are getting worse and worse. I live in a small city (Ithaca NY) and the state of our streets is pathetic. Roads are better out in the country than they are in town. 28mm will be the new norm before too long.

Sam
Sam
9 years ago

I love to see that Michelin is keeping their tires nice and large. the 700×25 version measures up to over 26mm on 15mm rims, which is actually very close to some competitor’s “700×28” tires (serfas for example)

Matt
Matt
9 years ago

Does anyone have an opinion on those Boyd carbon wheels? They are about $1500 for a wheel set which is really low price.

Big mike
Big mike
9 years ago

Don’t buy Boyd’s They are junk and that is from a shop mechanics perspective.

LateSleeper
LateSleeper
9 years ago

I’ll be very curious to see if these tires will clear an Enve road disc 2.0 fork. That fork is the limiting factor on a lot of custom-built “endurance” bikes like mine.

Jeb
Jeb
9 years ago

Vittoria Pave clinchers have been around for years and still set the standard for sh*tty condition tires. Throw some Challenge latex tubes in there and you get close to tubular ride and puncture protection.

Jim
Jim
9 years ago

@Big mike – for a shop mechanic I’d expect a bit more of an articulate perspective than “they are junk”. Care to elaborate?

Dirty-d
Dirty-d
9 years ago

Boyd’s=best customer service in the industry… Don’t believe me? E-mail the coach himself with a question and see how he responds.

Colin
Colin
9 years ago

Buy the Boyd’s They’re awesome and that is also from a shop mechanics perspective.

WV Cycling
WV Cycling
9 years ago

Dear Lord almighty, I would die for some classic green Michelin Mud II tires.

Please Michelin!

Matt
Matt
9 years ago

Wow, that is two wildly different perspectives on the Boyd wheels.

CJ
CJ
9 years ago

FWIW i live in NC, close to Boyds facilities and have heard many positive reviews of their wheels. Several people ive met ride their aluminum rims and swear by them, and plenty of people are on their carbon wheels as well. Ive seen them in person, they seem like pretty quality wheels, but they have lower spec hubs on them which is par for the price. I HAVE heard reviews of them that werent stellar, but not many.

Dave
Dave
9 years ago

Matt,

Buy a set of Reynolds carbon. Either the Attacks, Assaults, or Strikes. Range is $1600.00 to $1900.00.

The are tubeless comparable and you can be eligible for the RAP program which is s 2 year now questions asked crash replacement program that can be free.

Psi Squared
Psi Squared
9 years ago

As a result of this reading, I’m now waiting for PR4 Endurance 25mm tires to wear out so I give the 28mm skins a try.

Psi Squared
Psi Squared
9 years ago

…my…
…can…

dukmon
dukmon
9 years ago

I’ve been rolling on a set of Boyd’s for maybe 5 years now. Zero issues.

s00words
s00words
9 years ago

My 25c Pro 4 SC’s measure 29mm on Industry Nine i25 rims. I love fat/light tires.

Tyler Benedict
Admin
9 years ago

I have Pro4 25’s that measure at 27mm wide on Rolf Ares 4. I’ve heard from at least one wheel manufacturer and from my own experience that Michelin’s can run wider than listed, so if your frame clearance is tight, might be worth mounting one up at the shop before buying a set just to make sure they clear the stays.

Fisho
Fisho
9 years ago

Not tubeless = not buying.

Dan Lind
9 years ago

I’m pretty sure the Pro 4 SC 28mm’s will measure at least 31mm when mounted on wide HED C2+ rims. Perfect for my Cx bike, but much too wide (and tall, for that matter) to fit with the chain stays on my S-Works Tarmac. I’m hoping we’ll start to see more manufacturers design their top-end frames/forks to accommodate much wider road tires on 25mm+ rims. I love the cornering and comfort of running my Pro 4 SC 25mm’s on HED Jet 6+ wheels at 75psi front/78psi rear (Although I weigh 140#)

Michael
9 years ago

I tend to agree with the comments expressing surprise due to the lack of tubeless compatibility.

erikv
erikv
9 years ago

I’ve ran 32mm Conti Gatorskins tubeless for years with no problems (Stans ZTR rims). I’m sure these will be fine. Only need 50psi for something so fat.

Hoshie99
Hoshie99
9 years ago

Plenty of us still run tubes so the lack of tubeless is not a factor for most consumers (and even enthusiasts if our club rides are an indication) – and at that width, these will be very nice rollers. The 25s are great tires and if you want a little more rubber, these will be a nice choice if the 25s are any indication.

J

frogg
frogg
9 years ago

@Michael +1; especially when you know that Michelin did invent the tubeless tyre …

erikv
erikv
9 years ago

I would love to know when these will be available.

mf301ha
mf301ha
9 years ago

Still patiently waiting on Michelin releasing these 28-622/700x28C Pro 4 Endurance.
Hope they’ll also offer the Pro 4 Service Course in the same size as well.

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