Pre-modern Factory Ferrari Wheel Weights - 5x108

The following is my crowd-sourced, unmounted wheel weight data for the majority of the 5x108 wheels used on Ferraris between the early 80s and early 2000s. Data is from old Ferrarichat posts or measuring spares from my collection.

The biggest omissions are 348 17in rears, 550 Barchetta, 400/412, and mondial wheels (all), including TRX wheels.

This thread itself is a spiritual successor to one I made nearly 20 years ago for wheel offsets: https://www.ferrarichat.com/forum/threads/modern-ferrari-wheel-offsets.8361/

Ferrari OEM 5x108 Wheel Weights

308 - 16 x 7.0 15 lb
308 - 16 x 8.0 16 lb
328 - 16 x 7.0 22.9 lb
328 - 16 x 8.0 24.3 lb
348 - 17 x 7.5 - 28.6 lb
348 - 17 x 9.0 - ????
355 - 18 x 7.5 - 21.43 lb
355 - 18 x 10 - 23.85 lb
355 Challenge - Reportedly 19lb / 20 lb

360 Starfish - 18 x 7.5 - 20.6-21.2 lbs
360 Starfish - 18 x 10 - 24.5 lbs
360 Modular front - 18 x 7.5 - 25.4 lbs
360 Modular rear - 18 x 10 - 29.2 lbs
18in Challenge front - 19.35 lbs
18in Challenge rear - 22.1 lbs

430 19in front - 26 lb
430 19in rear - 29.8 lb

512TR front - 30.8 - 31.0 lbs
512TR rear - 33.7 lbs

512m Front - 30.2 lb
512m Rear - 32.0 lb

456 front - 25.5 lb
456 rear - 29.5 lb

550 front - 23.9 lbs
550 rear - 26.7 lbs
550B Modular front - ????
550B Modular rear - ????

575 front - 26.3 lbs
575 rear - 28.8 - 29.3 lbs
575 Modular front - 30.12 lbs
575 Modular rear - 32.25 lbs