Allstar Performance 26067 : Base Plate Inserts, 1.300" ID, Aluminum, Set of 4 (Fits Allstar 1" Base Plate)

Allstar Performance 26067 : Base Plate Inserts, 1.300" ID, Aluminum, Set of 4 (Fits Allstar 1" Base Plate)

ALL-26067

Regular price$37.99
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Shipping calculated at checkout.

Tapered inserts are machined to be within .002" for precise tuning. Inserts feature a step to simply drop into spacers and have sizes engraved on each insert for easy identification. Sold in a set of 4.


  • Free domestic shipping over $99

Racing Helmets

helmet size measurement metric
XS 6-5/8 to 6-3/4 20-7/8 to 21-1/4 53 to 54
S 6-7/8 to 7 21-5/8 to 22 55 to 56
M 7-1/8 to 7-1/4 22-3/8 to 22-3/4 57 to 58
L 7-3/8 to 7-1/2 23-1/8 to 23-1/2 59 to 60
XL 7-5/8 to 7-3/4 23-7/8 to 24-1/4 61 to 62
2XL 7-7/8 to 8 24-3/4 to 25-1/8 63 to 64

CMR Helmets

helmet size measurement metric
XS 6-1/2 to 6-5/8 20-1/2 to 20-7/8 52 to 53
S 6-3/4 to 6-7/8 21-1/4 to 21-5/8 54 to 55
M 6-7/8 to 7 21-5/8 to 22 55 to 56
L 7-1/8 to 7-1/4 22-3/8 to 23-3/4 57 to 58

Rookie Helmets

helmet size measurement metric
One size 6-3/4 to 7 21-1/4 to 22 54 to 56

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