IRC Notos Tire

DESCRIPTION

Low rolling resistance doesn't do much good if you wash out in every corner. So we designed the Notos XC to be fully lugged for maximum traction, but we shortened the knob height so it remained blazing fast. The result is a feathery XC racing tire perfect for any type of cross country course. Features our exceptionally strong yet amazingly light CAF casing, the PRF (read: no DNF) System, and Hybrid Tread Compound. Click on the image to the left for an enlarged photo showing tread detail and related product specifications.

USER REVIEWS

Showing 1-10 of 75  
[Jul 02, 2003]
ComNomad

OVERALL
RATING
1
VALUE
RATING
1
Strength:

Straight line rolling over dry, flat, hardpack.

Weakness:

Everything else.

Without a doubt, this is the worst tire I've run on my bike in the 15+ years I've been riding. Other than riding it in a straight line on a flat surface, it is useless. The manufacturer's claims of "blazing fast" are absurd. The knobs on the tire don't lend themselves to speed nor traction. At least if the tire were bald in the center there could be some explanation/justification for its terrible performance.

Ironically, I read many of the reviews here before actually purchasing the tire. I thought that most of the writers probably didn't know how to ride an XC race tire - preferring lazy handlebar turns to leaning the bike and railing. Forget about it. Skill and riding style have nothing to do with it, these tires suck!!

I bought the tire to put on the bike of my rig to match a large volume/low pressure WTB Mutano Raptor up front for a race in Gunnison, CO. The race is a long one for MTB - 42 miles for Pros/Experts and 21 miles for regular schmoes. Between practice loops and the race, I rode every kind of condition possible in three days: dry hardpack, mud, clay, sand, loam, rock, etc. And other than straight and flat these tires were completely unstable and unpredictable.

I know that I made a mistake in purchasing this tire, but I'm planning on spending a few more bucks to send the piece of junk back to the manufacturer along with a detailed review.

Similar Products Used:

I have never used anything similar to this tire in terms of performance. In terms of marketing claims, the Bontrager Revolt Semi-slick.

[Jun 18, 2003]
Keith

OVERALL
RATING
1
VALUE
RATING
2
Strength:

0

Weakness:

Where to begin, the front tire lugs are way to soft for anything but mud, spent 5 hours in ER having a cast put on after fracturing my elbow. To much flex and wash out at nearly any speed. Also 2.1 is VERY skinny for a 2.1. Only possible redemming quality I can see is in mud and even then they do not shed mud as well as you would expect for such a sparse tread.

No real redemming qualities...

Similar Products Used:

IRC Mythos, Continental Cross Country, Panaracer Fire XC, and Michelin Wildgripper Comp S

[Jun 02, 2003]
Jim Wise
Weekend Warrior

OVERALL
RATING
1
VALUE
RATING
1
Strength:

Grippy, climbed muddy single-tracks where I thought one would just spin out.

Weakness:

Very soft rubber wears out too fast. The rear tire is down to half the knobs in one month. I had a major puncture in the front tire while doing a fast downhill that sent me over the bars, and in that brief second of riding with no air the sidewall ripped open.

Take them off the bike ASAP. Better to put stronger tires on the rims than to pay the hospital! The tire blow out I had cost not only replacing the tire, but buying a new brain bucket also.

Similar Products Used:

Tioga

[Mar 16, 2002]
Tone
Weekend Warrior

OVERALL
RATING
1
VALUE
RATING
1
Strength:

Lightweight

Weakness:

The front tyre gives crap handling on hard pack trails and gives zero confidence at speed. Can't say what they are like in soft conditions as I binned them to my work hack at the first oppertunity!

If you want to feel like an absolute beginner, fit these tyres.

Similar Products Used:

velociraptors, tioga's, an others

[Feb 17, 2006]
Davo
Racer

OVERALL
RATING
2
VALUE
RATING
4
Strength:

Low rolling resistance - Very quick whilst the going is easy. Price - You can get some mega deals on the Notos if you look around. Mud clearance - Would not clog up.

Weakness:

Low mud ability.

I nabbed this of a friend with many tires. I had not tried it until the other day when I thought i would give it a go despite the very poor trail conditions. The trail was extrmely wet and muddy. Not clog your bike up clay type, more very muddy top over firmish base. The tire wouldn't clog up and ititially I thought it might be quite good as the blurb says its suitable for any xc course, but a few twisty turnies later and i was having the front wheel (only front wheel tested) washing out regularly. The bite under braking was acceptable for a fairly skilled rider, but the lack of cornering and lateral ability made sure I was unable to handle sections I normally clean. Consequently I had my foot out before nasty sections as my confidence had been eroded.

Bottom line - the speed and low rolling resistance is not beneficial in poor conditions as it is set off against poor grip in a variety of situations. HAving had some experience of similar tires in dry situations I would wholly accept this to do well under a skilled rider.

Similar Products Used:

Many many many.

[Feb 22, 2002]
Mike
Weekend Warrior

OVERALL
RATING
1
VALUE
RATING
2
Strength:

None.

Weakness:

No traction in anything other than hardpack.

This tire is next to useless in the Pacific NW. If you live out here where it is wet get a different tire.

[Oct 30, 2001]
greg
Cross Country Rider

OVERALL
RATING
3
VALUE
RATING
3
Strength:

Good rear traction

Weakness:

Front tire has no directional traction

I went down many cliff faces sideways because the front tire slips out on loose pack. After repairs, these tires have cost me hundreds of dollars. interesingly, the rear hooks up great and rarely slips. I switched the front tire out to a velociraptor, and no more sideslipping. I left the rear Notos on, and the control is great. Perhaps the front tire is Okay for straight lines, but should not be used in technical situations with cliff edges, unless a paramedic is nearby.

Similar Products Used:

Velociraptors, armadillos

[Mar 08, 2004]
otb again

OVERALL
RATING
2
VALUE
RATING
3
Strength:

light

Weakness:

slippage, thin sidewall

First ride was with Stans System and about 50lbs. On a cross country ride, I did some 'off trail' treking in order to get over to another jeep trail. This little jaunt involved bombing down a very (sharp) rocky section that would not be considered suitable for your average riders. About 50 yards into it, something must have hit the sidewall of the tire and put a 3/4 inch tear in it. These are the narrowest tires I have ever run, which could explain some loss of traction on some trails that I normally stick to (in climbs) and I had a hard time spinning through a sandy river bed that I normally have no problem with. I got a good deal from someone on eBay, but I won't ride these tires again. Value rating ? since I didn't buy retail.

Similar Products Used:

fire/smoke. Mythos.

[Dec 03, 2003]
Scott
Cross Country Rider

OVERALL
RATING
3
VALUE
RATING
3
Strength:

Light. Fast rolling. Good traction despite small knobs.

Weakness:

Got a few punctures.

These were on the bike when I got it new, folding rustwall 1.9's. I was really sceptical on account of the small shallow knobs. I was wrong. They hooked up really well even in loose stuff. The stiff side knobs worked well in corners and all things considered wore pretty well. I would have another set, but would go for 2.1's for more volume.

[Dec 13, 2001]
Darren
Cross Country Rider

OVERALL
RATING
1
VALUE
RATING
1
Strength:

Light weight (kevlar bead). Fast on dry hardpack.

Weakness:

Keep trying to kill me! Also puncture magnets. Arseways control over loose trail or anything wet.

Useless and dangerous for anything involving loose trail or mud. Can go seriously sideways very suddenly.

Hey Marin! I paid some serious money for this bike. I want decent tyres! And a shock pump.

These tyres saw about 2 rides before I replaced them with Panaracer Trailblasters (2.1" kevlar). Much better now.

Apart from their light weight, quite the worst tyres I have ever ridden on. IRC: Why not save some more weight and remove the rubber knobbly bits?

Similar Products Used:

Bontrager Jones, Specialised Ground Control, Tioga Farmer Johns Cousin (nostalgia!), Panaracer Trailblaster.

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