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Written by shiggy
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Friday, 03 July 2009 09:41 |
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Around 2000 I made the first comparisons on the effect of rim width on tire size. The charts below are for two sessions a couple of years apart. The same rims were used for both. The 26mm rim is still used as my "control" rim for measuring all 26" tires for the spec charts. Panaracer Fire Mud Pro 1.8 | Rim width / pressure | Casing Width mm / in. | Tread Width mm / in. | Casing Height mm | Volume Index | 22mm rim @ 40 psi (13.3) | 41.2 / 1.62 | 41.9 / 1.65 | 38.7 | 15.9 | 26mm rim @ 40 psi (15) | 42.4 / 1.67 | 42.0 / 1.65 | 38.7 | 16.4 | 32mm rim @ 40 psi (17.1) | 43.9 / 1.73 | 42.1 / 1.66 | 37.3 | 16.4 |
Maxxis Swampthing 60a 2.1 | Rim width / pressure | Casing Width mm / in. | Tread Width mm / in. | Casing Height mm | Volume Index | 22mm rim @ 40 psi (13.3) | 47.9 /1.89 | 50.7 / 2.00 | 43.1 | 20.7 | 26mm rim @ 40 psi (15) | 48.4 / 1.91 | 51.6 / 2.03 | 42.9 | 20.8 | 32mm rim @ 40 psi (17.1) | 51.0 / 2.01 | 53.8 / 2.12 | 42.5 | 21.7 |
WTB TyrannoRaptor 52/54 | Rim width / pressure | Casing Width mm / in. | Tread Width mm / in. | Casing Height mm | Volume Index | 22mm rim @ 40 psi (13.3) | 52.2 / 2.05 | 54.7 / 2.15 | 47.9 | 25.0 | 26mm rim @ 40 psi (15) | 53.9 / 2.12 | 55.5 / 2.18 | 49.5 | 26.7 | 32mm rim @ 40 psi (17.1) | 54.2 / 2.13 | 55.7 / 2.19 | 48.1 | 26.1 |
Nokian Gazzaloddi Jr 2.6 | Rim width / pressure | Casing Width mm / in. | Tread Width mm / in. | Casing Height mm | Volume Index | 22mm rim @ 40 psi (13.3) | 56.7 / 2.23 | 63.0 / 2.48 | 54.7 | 31.0 | 26mm rim @ 40 psi (15) | 57.0 / 2.24 | 62.6 / 2.46 | 54.8 | 31.2 | 32mm rim @ 40 psi (17.1) | 59.9 / 2.36 | 63.4 / 2.50 | 55.3 | 33.1 |
All tires inflated to 40psi | Panaracer SpeedBlaster Lite 1.75 | Rim width | Tread Width mm | Casing Width mm | Casing Height mm | Volume Index | Axle to Tread widest point mm | Axle to Tread tallest point mm |
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22mm | 42.9 | 39.0 | 35.5 | 13.9 | 314 | 324 | 26mm | 43.1 | 41.1 | 36.7 | 15.1 | 314 | 325 | | 28mm | 43.9 | 41.8 | 37.0 | 15.5 | 314 | 324 | 32mm | 43.3 | 42.3 | 35.2 | 14.9 | 315 | 324 |
| Specialized Adrenaline Pro 2.00 | Rim width | Tread Width mm | Casing Width mm | Casing Height mm | Volume Index | Axle to Tread widest point mm | Axle to Tread tallest point mm |
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22mm | 52.8 | 50.3 | 48.8 | 24.6 | 324 | 340 | 26mm | 52.9 | 51.0 | 49.5 | 25.3 | 326 | 339 | | 28mm | 53.0 | 51.4 | 49.4 | 25.4 | 325 | 339 | 32mm | 52.9 | 52.1 | 48.3 | 25.2 | 326 | 341 |
| Schwalbe Big Betty 2.40 | Rim width | Tread Width mm | Casing Width mm | Casing Height mm | Volume Index | Axle to Tread widest point mm | Axle to Tread tallest point mm |
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22mm | 61.3 | 56.0 | 52.6 | 29.5 | 327 | 343 | 26mm | 61.3 | 57.1 | 53.4 | 30.5 | 327 | 344 | | 28mm | 61.8 | 58.2 | 53.9 | 31.4 | 327 | 343 | 32mm | 61.6 | 59.0 | 52.5 | 31.0 | 329 | 344 |
| Intense DH 60 EX 2.50 | Rim width | Tread Width mm | Casing Width mm | Casing Height mm | Volume Index | Axle to Tread widest point mm | Axle to Tread tallest point mm |
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22mm | 64.9 | 55.3 | 52.8 | 29.2 | 324 | 343 | 26mm | 65.2 | 57.2 | 53.9 | 30.8 | 326 | 344 | | 28mm | 65.6 | 57.8 | 54.5 | 31.5 | 327 | 342 | 32mm | 65.3 | 58.4 | 53.4 | 31.2 | 329 | 346 |
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Last Updated on Friday, 03 July 2009 10:36 |