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  4. MAC Manuals
  5. F50/7R MAC Rigid Frame Service Manual 1955
  6. Tyre Maintenance

NOMINAL TYRE SECTION.

2.375"

2.75"

3.00"

3.25"

3.50"

4.00"

Minimum Inflation Pressures. Lbs. per inch.

 

LOAD PER WHEEL IN LBS.

16

120

140

160

200

280

360

18

140

160

180

240

320

400

20

160

180

200

280

350

430

24

185

210

240

350

400

500

28

210

250

300

400

450

—

32

240

280

350

440

500

—

For all normal purposes the minimum pressures for the three types should be :-

Front

MOV & MAC. 16-lbs. MSS 16-lbs    

Rear

  18-lbs.   16-lbs.    

Additional loading such as a heavy rider, pillion passenger, or the addition of a sidecar will require a higher pressure. Owing to the difference in the various sidecars available we do not quote pressures, but recommend that the loaded weight upon each wheel be checked on a public weighbridge. With this information the correct pressures can be found from the table. Check the pressures weekly and inflate if loss of pressure is noticed.

NEVER RUN TYRES UNDER-INFLATED.

Occasionally examine the tyres for cuts, and in order to remove flints or nails which may be partly embedded in the treads. Partly deflate tyres to remove nails or flints.

 

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  • Velocette Documents
    • GTP Manuals
      • F40/5R GTP Instruction Book 1951
    • KSS, KTS Manuals
      • F236/4R Mk. II OHC Instruction Book 1950
      • F42/3R OHC Models 1925-1931 Instruction Book
    • MAC Manuals
      • F469/4R MAC Service Guide 1965
      • F466/2R MAC Owner's Handbook 1955
      • F50/7R MAC Rigid Frame Service Manual 1955
      • F50/4R Supplement
    • MOV and MAC
      • F131-3R Instruction Book 1937
    • MSS Manuals
      • F477 Owners Handbook 1954
    • Venom, Viper, MSS
      • F485/1R Owner's Handbook 1956
      • F484/9R Service Guide 1967
      • F484/11R Service Guide 1971
    • Valiant Manuals
      • F62-1R Service Manual