shiggy's Mt Bike Tire Site

IRC Logo IRC Tire Specs

How We Measure the Tires: What it Means
Arrow || Azonic || Continental || Bontrager || Geax || Hutchinson || Innova || Intense || IRC || Kenda || Klein || Maxxis || Michelin || Nokian || Panaracer || Ritchey || Rubena || Schwalbe || Specialized || Stan's No Tubes || Sweetskinz || Syncros || Tioga || Vredestein || WTB || 700C / 29" || Inner Tubes

ID Number	Brand	Tire Name	Tube _ Tubeless	Stated Size	ETRTO Size	Tread Width mm _ in.	Casing Width mm _ in.	Casing Height mm	Volume Index v.3_	Claimed Weight	Actual Weight	Number Weighed	Bead	TPI	Directional Tread	Tread depth _ center mm	Tread Depth _ Side mm	Axle to Tread widest point mm	Axle to Tread tallest point mm	Tread Durometer	Country of Manufacture	MSRP $US
IRC back to top
ir001	IRC	Backcountry	tube	2.25		52.9 / 2.08	49.5 / 1.95	46.6	23.1	640	645 / 659 / 679 / 714	4	folding	66	yes	4.1	6.2				Japan
ir002	IRC	El Gato	tube	2.25						865		1	folding	66	yes
ir014	IRC	Kujo DH	tube	2.35	-	59.2 / 2.33	55.1 / 2.17	51.3	28.3	-	1083	1	folding	-	yes	4.3	6.4	328	346	-	Japan	na
ir013	IRC	Kujo DH	tube	2.25	-					-	1052	1	folding	-	yes						Japan	na
ir011	IRC	Mibro	tube	2.10		50.0 / 1.97	48.2 / 1.90	46.0	22.2	520	511 / 524	2	folding	127	yes	3.1	5.9	324	336
ir003	IRC	Missle	tube	2.25									folding	-	yes
ir006	IRC	Mud Mad DH	tube	2.25	n/a	58.4 / 2.30	51.0 / 2.01	48.3	24.6	-	1016 / 1032	2	folding	-	yes	4.7	6.1	323
ir004	IRC	Mud Mad front	tube	1.95		45.4 / 1.79	45.3 / 1.75	42.0	19.0	550	625 / 605 / 618	3	folding	-	yes	4.9	6.0
ir005	IRC	Mud Mad rear	tube	1.95						550			folding	-	yes
ir007	IRC	Mythos XC II 29 F K	tube	2.1 x 29		51.0 / 2.01	49.9 / 1.97	47.9	23.9	720	667	1	folding	66	yes	3.6	5.6	358
ir008	IRC	Mythos XC II 29 R K	tube	2.1 x 29		51.2 / 2.02	50.9 / 2.01	48.8	24.8	720	641	1	folding	66	yes	3.0	4.2	359
ir009	IRC	Notos	tube	1.70		42.2 / 1.66	39.0 / 1.53	35.8	14.0	480	476 / 483	2	folding	-	yes	3.0	4.0	314
ir010	IRC	Notos XC 29	tube	2.1 x 29		50.9 / 2.00	50.5 / 1.99	48.2	24.3	-	659	1	folding	-	yes	2.9	4.3
ir012	IRC	Stingo XC	tubeless	1.90		45.6 / 1.80	45.9 / 1.81	44.3	20.3	635	683	1	folding	127	no	4.0	6.6	325	331	-	Japan	-

All tires are 26" unless otherwise noted.
26" tires mounted on Mavic 261 rim (26mm wide) @ 40psi.
700c (29") tires mounted on a Velocity Dyad rim (24mm wide) @ 40psi.
Add about 2mm to widths to match WTB standard @ 60psi.

Paul's Bicycle Way of Life - Eugene, Oregon