Photos shown for illustration; shade and shape may differ slightly.
20mm Wheel Spacers & 8 Conical Seat Bolts M12x1.5 45mm - BMW 3 Series E21 (1975-1983)
In stock
The selected option (Let's Race) is ready to ship.
On the BMW 3 Series E21 (1975-1983) a 20 mm spacer moves each wheel 20 mm outwards: the track width of the axle grows by 40 mm and the effective wheel offset (ET) drops by 20 mm. The standard bolt is then too short. The kit comes with the 45 mm bolts, so you do not have to work out the length yourself.
For competition cars onlyThis product is not homologated for use on public roads. It is fitted to competition cars used on circuit, in rally or in drift.
What's in the kit
- 2 hub centric spacers, 20 mm thick, that locate on the hub lip. You choose the spacer brand from the list: Let's Race or Japan Racing JRWS2.
- 8 Let's Race M12x1.5 wheel bolts with a conical seat, 45 mm long.
Specifications
| Bolt pattern | 4x100 |
| Hub bore | 57.1 mm |
| Thickness per side | 20 mm |
| Bolt thread | M12x1.5 |
| Bolt seat | conical |
| Bolt length | 45 mm |
| Kit contents | 2 spacers and 8 bolts |
Fitment
- BMW 3 Series: E21.
- The kit covers one axle. For the whole car you need two kits.
What to check when fitting
- With the 20 mm spacer fitted, a 45 mm bolt still engages 25 mm of thread in the hub.
- The conical seat has to match the wheel, not the car. An aftermarket wheel may need a different seat.
- Re-torque the wheel bolts after the first few kilometres.