Part number 751.2, 30.1mm reamer is included with HTR-1For headset cups with 30.2mm outside diameter, common on 1"" steering column bikesPark Tool 751.2 - Reamer, 30.1mm (1") for HTR-1 and HTR-1BSKU: QK7512£84.99PriceQuantity*Add to CartDeliveryThis item ships from our UK distributor. Standard delivery: 3-5 working days.