Terms:
Steering wheel PCD – Pitch Circle Diameter (PCD) is the diameter of the circle which passes through the centre of all the holes of the steering wheel.
Nowadays there are lots of different brand steering wheels, steering wheel hubs/boss kits, quick release system kits and other steering wheel accessories on the market. Some of the brands are with the same bolt pattern and can work together. However, two most famous manufacturing companies of steering wheels and hubs, Nardi and MOMO offer their production with different bolt patterns.
Steering wheel bolt pattern, also referred to as Pitch Circle Diameter (PCD) is the diameter of the circle which passes through the centre of all the holes of the steering wheel. We offer this guide below to learn what bolt pattern each brand uses and to find out what steering wheels, boss kits and accessories can work together.
BOLT PATTERN (PCD): 6x70 mm
- MOMO
- Sport Line
- Sabelt
- Italvolanti
- Sparco
- NRG
- Vertex
- OMP
- ORECA
- Turn One
- Simoni Racing
- Mountney
- Grip Royal
- Circuit Performance
- ISSOTA
- Motocorsa
- Works Bell
- KEY's Racing
- ATC
- Prodrive
- RS Watanabe (Falcon)
- Ferrero (Fiat 124 Spyder)
- Abarth
- MPI
- Racetech
- Velo
- Mine's
- Tanida (Juran Racing)
BOLT PATTERN (PCD): 6x74 mm
- Nardi
- Personal
- Volanti Luisi
- Raid
- Dino
- Gussi Italia
BOLT PATTERN (PCD): 6x75 mm
- Ferrero
BOLT PATTERN (PCD): 6x80 mm
- Fusina
BOLT PATTERN (PCD): 9x4"
- Mountney
- Lecarra
- Moto-Lita
- Springalex
BOLT PATTERN (PCD): 6x2.75"
- Grant
- MPI
BOLT PATTERN (PCD): 5x2.75"
- Grant
- Victor
BOLT PATTERN (PCD): 3x1.75"
- Grant
BOLT PATTERN (PCD): 3x50.8 mm
- Sparco
- Sport Line
- MPI
BOLT PATTERN (PCD): 3x74 mm
- Atiwe
- ATI
- Italvolanti
If your steering wheel and steering wheel hub/boss kit are in different bolt pattern we can offer you a range of steering wheel adaptors which will let you use these two parts together.
