Road Racing FIM Sidecar World Championship ... - Spelregels

2) Any modification to the rim or spokes of an integral wheel (cast, moulded,
riveted) as supplied by the manufacturer or of a traditional detachable rim
other than for spokes, valve or security bolts is prohibited except for tyre
retention screws sometimes used to prevent tyre movement relative to the
rim. If rim is modified for these purposes bolts, screws etc., shall be fitted.
3) The maximum width of the rear wheel rims is: 11"
4) For information, the distance is measured inside flange walls of the wheel
rim in accordance with ETRTO.
2.3.6 The width of tyres used shall not be less than the values shown in
Table 1.
1) With the exception of slick tyres and tyres marked not for highway use, the
manufacturer shall identify the tyre with a mark indicating:
• The DOT mark and/or the E mark (used for "homologated tyres" or
tyres
• marked for highway use only)
• The manufacturer's brand name
• The year of manufacture (in code)
• The tyre dimension
• The speed rating (permitted max. speed) – W
• Any other features necessary for correct use of tyre
2) The minimum rim diameter is 400 mm.
3) Interior – fixture – width of tyre
The tyre shall be mounted on a corresponding rim. The interior (fixture)
width values for respective dimensions of tyres are shown in Table 1. The
rim interior (fixture) shall not be deformed or damaged.
4) Permitted maximum speed
The speed categories for use in individual classes are shown in Table 1.
This does not apply to slick tyres.
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