Technische Daten Beaded-Edge

Beaded-edge Tyres

Beaded edge tyres are kept in place by reinforced rubber beads which are held by the rolled edges of the wheel rim.

They were used on early bicycles, many pre-1924 cars and most motorbikes until 1927.

The tyres are measured in millimetres in Europe but inches in America.

Tyre Size Overall Diameter
(inches)		 Inflated Width
(inches)		 Approved
Rim Width
(inches)		 Maximum Load
(lbs)		 Revs Per Mile
26 x 3
(700 x 80)		 27.25 3.25 1.75 440 779
710 x 90 28.30 3.60 2.00 650 750
760 x 90 30.00 3.60 2.00 650 707
810 x 90 32.30 3.60 2.00 650 657
815 x 105 33.00 4.10 2.45 900 643
875 x 105 35.50 4.10 2.45 900 597
820 x 120 32.20 4.65 2.64 1225 659
880 x 120 34.80 4.65 2.64 1225 610
895 x 135 35.00 5.25 3.03 1600 606
715 x 115 28.20 4.50 2.44 560 752
720 x 120 28.50 4.75 2.44 780 743
730 x 130 29.10 5.10 2.44 895 732
775 x 145 31.00 5.65 2.64 1120 684
30 x 3.5 31.00 3.65 2.00 750 684
30 x 3 30.60 3.15 1.75 600 693
36 x 4 36.10 4.20 2.50 1000 588
37 x 4 37.00 4.10 2.50 1000 573
Beaded Tyre Diagram

Dimensions of beaded-edge wheel rims to suit High Pressure Tyres prior to 1928

Tyre Size Outside
Diameter
(mm)		 Inside
Diameter
(mm)		 Overall
Width
(mm)		 Inside
Width
(mm)
26 x 3 540 506 63 44
30 x 3 639 605 63 44
28 x 3.5 565 528 75 51
30 x 3.5 616 579 74 51
32 x 3.5 672 631 75 51
550 x 65 446 414 58 39
650 x 65 536 506 58 39
710 x 90 548 511 74 51
760 x 90 592 555 74 51
810 x 90 646 609 74 51
756 x 105 596 553 88 62
815 x 105 649 606 88 62
875 x 105 712 671 88 62
820 x 120 609 561 98 67
880 x 120 672 625 98 67
920 x 120 711 663 98 67
835 x 135 609 559 109 77
895 x 135 634 585 109 77
935 x 135 684 635 109 77
855 x 155 579 519 127 90
955 x 155 677 617 127 90
1025 x 185 670 592 160 113
1085 x 185 771 693 160 113

Dimensions of beaded-edge rims to suit Low Pressure Tyres used 1925-1928

Tyre Size Outside
Diameter
(mm)		 Inside
Diameter
(mm)		 Overall
Width
(mm)		 Inside
Width
(mm)
715 x 115 488 447 88 62
720 x 120 488 447 88 62
730 x 135 488 447 88 62
775 x 145 526 480 98 67
780 x 150 526 480 98 67
860 x 160 552 503 109 77
905 x 165 579 525 114 81
Straight-sided Tyres

Straight-sided tyres were developed in the USA and are similar in construction to wired-on tyres with inextensible wire beads.

They are designed for rims with a detachable flange or rims that could be reduced in diameter for tyre fitting and removal. Click here for details of the two-piece (or straight-sided) rims we can supply.

Tyre Size Overall
Diameter
(inches)		 Inflated
Width
(inches)		 Recommended
Rim Width
(inches)		 Max
Load
(lbs)		 Revs
Per
Mile
31 x 4 31.50 4.20 2.75 900 673
32 x 4 32.45 4.20 2.75 1000 655
32 x 4.5 33.00 4.65 3.10 1250 643
43 x 4.5 34.80 4.70 3.10 1250 610
36 x 4.5 36.70 4.70 3.10 1250 578
33 x 5 33.50 5.20 3.75 1700 633
35 x 5 35.40 5.20 3.75 1700 599
Straight Sided Rim

Straight-sided Tyre and Rim Dimensions

Tyre Sizes Outside
Diameter
(mm)		 Inside
Diameter
(mm)		 Overall
Width
(mm)		 Inside
Width
(mm)
18 x 3.5 or 25 x 3.5 492 451 87 59
19 x 3.5 or 27 x 4.40 518 476 87 59
20 x 3.5 or 30 x 5.00 543 501 87 59
21 x 3.5 or 29 x 4.40 568 527 87 59
22 x 3.5 or 32 x 5.00 594 552 87 59
23 x 3.5 or 31 x 4.00 619 578 87 59
25 x 3.5 or 32 x 3.5 670 626 87 59
18 x 4 or 27 x 4.75 498 451 99 68
19 x 4 or 28 x 4.75 522 476 99 68
20 x 4 or 29 x 4.50 548 500 99 68
21 x 4 or 30 x 4.50 573 527 99 68
22 x 4 or 32 x 4.00 598 552 99 68
23 x 4 or 31 x 4 or 33 x 5 624 578 99 68
24 x 4 or 33 x 4.5 649 601 99 68
25 x 4 or 34 x 4.5 675 626 99 68
18 x 4.5 or 28 x 5.00 502 450 111 79
19 x 4.5 or 29 x 5.00 527 476 111 79
20 x 4.5 or 30 x 5.00 552 501 111 79
21 x 4.5 or 31 x 5.00 578 525 111 79
22 x 4.5 or 32 x 5.00 603 551 111 79
23 x 4.5 or 32 x 4.5 or 33 x 5 629 577 111 79
24 x 4.5 or 33 x 4.5 654 601 111 79
25 x 4.5 or 34 x 4.5 or 35 x 5 679 626 111 79
18 x 5 or 30 x 6.00 502 449 127 95
19 x 5 or 31 x 6.00 527 476 127 95
20 x 5 or 32 x 6.50/6.20 552 500 127 95
21 x 5 or 33 x 6.00 578 525 127 95
 Bibendum Tyres

Bibendum tyres were developed in France and are similar to the wired-on tyres used with well-based wheels.

The tyre can only be fitted from one position since the wheel rim has a well around only half of its circumference.

Sizes are in centimetres and are NOT interchangeable with ordinary wired-on tyres. These tyres were phased out in the 1930s but some sizes are still produced; contact us for details.

Tyre Size
(cm)		 Overall
Diameter
(inches)		 Inflated
Width
(inches)		 Recommended
Rim Width
(inches)		 Max. Load
(lbs)		 Revs per mile
140 x 40 26.80 5.45 3.54 785 792
150 x 40 27.60 5.90 3.54 895 769
12/13/14 x 45 28.20 5.35 3.15 1150 753
14/15/16 x 50 31.50 5.85 3.45 1300 674

 

Quelle: http://www.mwsint.com/