Specialised
Automobile Services |
| Well Based Wheels |
Wired-on tyres have inextensible wire beads which hold the tyre in place. Although developed as early as the beaded edge tyre they did not gain popularity, except for some bicyles and light motorcycles, until 1924. From that time onwards it has been the most successful method of attachment. More recent developments include the radial, as opposed to cross-ply, casing and a lower squatter profile. |
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TYRE AND RIM DIMENSIONS - in inches |
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| Tyre Size | Rim Width | Rim Depth |
| 4.50 - 17 | 2.75 | 0.656 |
| 5.00 - 17 | 3.00 | 0.656 |
| 5.25/5.50 - 17 | 3.25 | 0.749 |
| 6.00 /6.50 - 17 | 5.00 | 0.780 |
| 7.00 - 17 | 5.00 | 0.828 |
| 4.50 - 18 | 2.75 | 0.656 |
| 4.75/5.00 - 18 | 3.00 | 0.656 |
| 5.25/5.50 - 18 | 3.25 | 0.749 |
| 6.00/6.50 - 18 | 3.62 | 0.820 |
| 7.00 - 18 | 5.00 | 0.828 |
| 3.50/4.00 - 19 | 2.50 | 0.656 |
| 4.50/4.75/5.00 - 19 | 2.75 | 0.656 |
| 5.25/5.50/6.00 - 19 | 3.25 | 0.749 |
| 6.50/7.00 - 19 | 4.00 | 0.820 |
| 4.50/4.75/5.00 - 20 | 2.75 | 0.656 |
| 6.00 - 20 | 3.25 | 0.749 |
| 6.50/7.00 - 20 | 4.00 | 0.820 |
| 4.50/4.75 - 21 | 2.75 | 0.656 |
| 5.00/5.25 - 21 | 3.25 | 0.749 |
| 6.00 - 21 | 4.50 | 0.875 |
| 6.50/7.00 - 21 | 5.00 | 0.875 |
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Wired-on tyre and well-based dimensions - in inches |
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| Tyre Size | Overall Diameter |
Inflated width |
Suggested Rim Width |
Max. Load in lbs. | Revs. per mile |
| 4.50/4.75 - 16 | 25.00 | 4.80 | 2.75 | 790 | 832 |
| 5.00/5.25 - 16 | 26.50 | 5.20 | 3.25 | 820 | 801 |
| 5.50 - 16 | 27.00 | 5.80 | 3.50 | 865 | 786 |
| 5.75 - 16 | 28.00 | 6.10 | 4.00 | 1120 | 758 |
| 6.00 - 16 | 28.00 | 6.30 | 4.50 | 1270 | 758 |
| 6.50 - 16 | 29.00 | 6.80 | 5.00 | 1290 | 731 |
| 6.70 - 16 | 28.55 | 6.50 | 4.50 | 1280 | 743 |
| 7.00 - 16 | 30.10 | 7.60 | 5.50 | 1390 | 705 |
| 7.50 - 16 | 31.20 | 7.90 | 5.50 | 1560 | 680 |
| 4.00 - 17 | 26.00 | 4.20 | 2.50 | 560 | 816 |
| 4.50 - 17 | 26.60 | 4.75 | 2.75 | 850 | 792 |
| 4.75/5.00 - 17 | 27.70 | 5.20 | 3.00 | 925 | 766 |
| 5.25/5.50 - 17 | 29.10 | 5.80 | 3.25 | 1055 | 729 |
| 6.00/6.50 - 17 | 30.20 | 6.75 | 4.50 | 1410 | 702 |
| 7.50 - 17 | 32.00 | 8.00 | 5.00 | 1790 | 663 |
| 4.00 - 18 | 26.40 | 4.10 | 2.50 | 620 | 804 |
| 4.50 - 18 | 27.90 | 4.65 | 2.75 | 850 | 760 |
| 4.75/5.00 - 18 | 28.70 | 5.20 | 3.00 | 1000 | 739 |
| 5.25/5.50 - 18 | 30.10 | 5.80 | 3.25 | 1100 | 705 |
| 6.00/6.50 - 18 | 30.90 | 6.30 | 4.00 | 1450 | 689 |
| 7.00 - 18 | 32.50 | 7.30 | 5.00 | 1900 | 653 |
| 3.50 - 19 | 27.00 | 3.70 | 2.25 | 430 | 786 |
| 4.00 - 19 | 28.20 | 4.30 | 2.50 | 620 | 752 |
| 4.50 - 19 | 28.70 | 4.70 | 2.75 | 850 | 739 |
| 4.75/5.00 - 19 | 29.50 | 5.10 | 3.00 | 950 | 719 |
| 5.50 - 19 | 31.10 | 5.70 | 3.50 | 1200 | 682 |
| 6.00 - 19 | 31.70 | 6.10 | 4.00 | 1450 | 669 |
| 6.50 - 19 | 32.50 | 6.70 | 4.00 | 1680 | 653 |
| 7.00 - 19 | 33.00 | 7.20 | 4.50 | 1900 | 643 |
| 4.75/5.00 - 20 | 30.30 | 5.10 | 2.75 | 975 | 700 |
| 5.25/5.50 - 20 | 31.20 | 5.50 | 3.00 | 1225 | 680 |
| 6.00 - 20 | 32.10 | 5.95 | 3.50 | 1450 | 661 |
| 6.50 - 20 | 33.60 | 6.65 | 4.00 | 1750 | 632 |
| 7.00 - 20 | 34.40 | 7.10 | 4.50 | 1925 | 617 |
| 4.50/4.75 - 21 | 31.00 | 4.85 | 2.75 | 965 | 684 |
| 5.25 - 21 | 32.40 | 5.35 | 3.25 | 1120 | 655 |
| 6.00 - 21 | 33.50 | 5.95 | 4.00 | 1550 | 633 |
| 7.00 - 21 | 35.00 | 7.10 | 5.00 | 1935 | 606 |
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Specialised Automobile Services,
Langley Mill, Langley Road, Langley
Macclesfield, Cheshire SK11 0DG
Tel: 01260 253119
Fax: 01260 252699 e-mail: sales@wirewheels.co.uk
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