Upright Extensions + Calliper Upgrade Kit for use with Birzman Wheel Truing Stand (BM15-WHTS).

Upright extensions increase the hub compatibility up to 235mm.

New calliper design with interchangeable pointer bits allow greater rim compatibility range of 19-105mm.

Accepts tire widths up to 5".


SPHC / Aluminium / Alloy steel / High polymer (pointer)

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