Review: Momsen Mount Graham tyre

Momsen teamed up with Arisun to launch a South African specific Mount Graham casing under the Momsen Bikes banner, specifically designed for our XC and Marathon race conditions.
Momsen Mount Graham tyre 1.jpg

What sets the Momsen apart from the standard Arisun is the development and use of a 120tpi (threads per inch) casing. Higher thread-count casings are lighter, more flexible and supple, and (usually) more expensive. The supple casing means that there should be more grip and traction, but does tend to sacrifice on tyre wear.

Momsen Mount Graham Tyre 2.jpg

The dual compound design features a harder 68A centre for slower wear and a softer 60A on the shoulder for better grip. At this stage it is only available in 29x2.20, but there are whispers of more sizes to follow. Weighing in at a very respectable 621 grams, actual weight (on my digital kitchen scale), it compares well with the competition of similar specification.

Momsen_Arisun_Tyre_Packaging_Artwork_Final.jpg

The squarish, slotted block tread design features short, relatively close-spaced centre knobs with wider spaced knobs on the sides and shoulder. The sidewalls feature a 40TPI x 40TPI reinforcement which is visible when holding the tyre in hand - compared to a tyre with a thinner, weaker sidewall, the Momsen Mount Graham stays remarkably round with very little sag.

MG vs BX.jpg

On the Trail:


I mounted the tyres to a set of American Classic Tubeless 29 wheels and converted them to tubeless using Stan's No Tubes sealant. They mounted easily and sealed first time using a Topeak JoeBlow Mountain floor pump. The 120TPI casing and tread pattern delivers a good combination of traction and speed. My first impression on the trail was of instant acceleration, coupled with low drag thanks to the supple casing and shallow tread pattern.

Momsen Mount Graham tyres.jpg

The rounded profile means that you have to use your weight to get grip going around corners. The tyres also struggle to offer enough grip in muddy conditions, but this is true of most fast rolling, low profile XC tyres.

A big positive is the stronger, sturdier sidewalls - especially at this weight. I could easily run pressures I wouldn't dream of on other race tyres without suffering from sidewall "collapse" out on the trail. It also makes for a puncture resistant design when combined with a tubeless sealant. Multi-day stage racers will appreciate this.

Momsen Mount Graham 3.jpg

After six months of use, I haven't suffered a single puncture or sidewall cut. I am more than happy to sacrifice ultimate weight weenie bragging rights for this reliability. Wear has been good and, more importantly, as the tyre has worn the performance and feel has stayed consistent and predictable.

Verdict:


As a tyre, regardless of price, the Mount Grahams performed well and manages to impress with it's blend of speed and traction in a fast rolling, low profile tyre. As a XC / Marathon tyre it is highly recommend and can even do duty as a rear trail tyre for all but the rainy season. Considering that it retails for under R500, it's "worth" shoots up even further.

Momsen have given us a tyre that is light, durable and inexpensive - a rare find in an industry where one would usually have to settle for 2 out of 3 of those attributes.

Specifications:


Suggested retail: R450
Weight: 640g
Size: 29 x 2.20

From the Manufacturer:


- High Performance Tubeless Tyre
- Developed for XC & Marathon Conditions
- 120TPI carcass for less weight and a more supple ride
- Tubeless bead for tubeless compatibility and excellent sealing
- Dual compound tread surface




28 Comments

SimpleDom, Feb 24 2015 06:17

If only momsen catered for non midgets.... I'd be their best customer. Nice tyres.

kvdp, Feb 24 2015 07:02

Nice writeup.Was pondering on the idea of fitting a set for a while already.Think I will give them a try.

Prince Albert Cycles, Feb 24 2015 07:42

Nice write up .
Will surely give them a try .

niterider, Feb 24 2015 07:49

What an unfortunate name. Will never be able to look my mate Graham in the eye again.

Iwan Kemp, Feb 24 2015 08:03

What an unfortunate name. Will never be able to look my mate Graham in the eye again.

 

Where will you be looking then?  :eek:

rckhpr29er, Feb 24 2015 08:37

I have been riding a pair of the old Arisun Mt Graham's and they are a winner. I nearly fell over when I saw the price (R395). Had them for a year riding devil thorn infested vineyards and am yet to have a flat. Excellent value; go buy them now!

nonky, Feb 24 2015 08:44

No mention of Strava or The Spruit?

Iwan Kemp, Feb 24 2015 09:07

Kargo Pro MTB Team saying via Instagram that in over 50 race days they've only had 1 puncture across 4 bikes.  :thumbup:

Oxter, Feb 24 2015 09:27

Me Like :thumbup:

craig82, Feb 24 2015 10:48

I only have good things to say about these. They even held up in the Baakens valley in Port Elizabeth that has ruined so many of my tyres.

 

  • Roll super fast
  • Great sidewall protection
  • Affordable

Nice one.

Crosschain, Feb 24 2015 11:13

When will there be stock available in SA ?

First batch sold out ....

Great tyre - especialy on the back ......

Iwan Kemp, Feb 24 2015 11:18

When will there be stock available in SA ?

 

Stock will arrive in March. I will follow up again and post an update once there's clarity on the exact ETA.

SimpleDom, Feb 24 2015 11:22

When will there be stock available in SA ?
First batch sold out ....
Great tyre - especialy on the back ......

Also interested... I would also only run it at the back. Unless they bring the fatter ones out for the front.

Iwan Kemp, Feb 24 2015 11:37

Also interested... I would also only run it at the back. Unless they bring the fatter ones out for the front.

 

Will cover more of it in my review on the American Classic Wide Lightnings, but on a wider rim (like the AMC's) they provide plenty of grip out front.

Suidwes Boytjie, Feb 24 2015 11:46

What will a good tyre setup be with these at the back? Front???

Suidwes Boytjie, Feb 24 2015 11:48

Im running Maxxis Crossmark at the moment... Front and back on Stan's Arch Rims. Maybe give this a go at the back or what would you advice?

SimpleDom, Feb 24 2015 12:00

Im running Maxxis Crossmark at the moment... Front and back on Stan's Arch Rims. Maybe give this a go at the back or what would you advice?

Crossmarks on the front eh? Brave....

TheJ, Feb 24 2015 12:02

They should bring out a 29x2.0 version, and I might buy some. But only after this stash is finished. :thumbup:

 

tyres.jpg

HOEKVLAG, Feb 24 2015 12:07

Stock will arrive in March. I will follow up again and post an update once there's clarity on the exact ETA.

I was worried when I read this just now, because I ordered 2 from CWC this morning, but I see it's not available anymore, so I was just in time!

Suidwes Boytjie, Feb 24 2015 12:35

Crossmarks on the front eh? Brave....


Done 1400km on them so far with no problems...

SimpleDom, Feb 24 2015 12:41

Done 1400km on them so far with no problems...

It's just that I don't have enough skill to steer with that little grip on the front.

Iwan Kemp, Feb 24 2015 04:11

They should bring out a 29x2.0 version, and I might buy some. But only after this stash is finished. :thumbup:

 

attachicon.giftyres.jpg

 

Kargo's stash

 

10704119_755103647895184_795621099069523

Iwan Kemp, Feb 24 2015 08:08

I was worried when I read this just now, because I ordered 2 from CWC this morning, but I see it's not available anymore, so I was just in time!


There are some shops who still behave stock. Last I popped in at Cyclesport Kuilsrver they had.

TheJ, Feb 24 2015 08:22

Kargo's stash

10704119_755103647895184_795621099069523


Slight difference is I had to pay for mine :-)

Ethen, Feb 25 2015 07:47

Slight difference is I had to pay for mine :-)

While you 2 compare pics of your stashes why not launch a few our way so we can show you they go better on the rims and sacking up the trail.........LOL