In this listing:
HUB242
Pro 2 EVO Rear X12 Thro Conversion Kit
HUB241
Pro 2 EVO Rear 12mm Thro Conversion Kit
HUB239
Pro 2 EVO Rear 10mm Thro Conversion Kit
HUB238
Pro 2 EVO Rear QR Conversion Kit
HUB441
15mm Pro 2/EVO Front Conversion
Hope Say:
"Key Features
CNC machined and anodised
Most conversions can be changed without tools
Widest range of conversions
Available for past, present and future standards
Axle Conversion Kit Tech Specs >
Accurately machined conversions ensure perfect fit
Easily change between sizes, usually without tools
Pro 4 front hubs - QR, 9mm, 12mm, 15mm and 20mm
Pro 4 rear hubs - QR, 10mm and 12mm"