Zipp SRAM XDR Freehub Kit For 176 177 Hub

Introduced in 2015, the 77/177D hubset is engineered for versatility, durability and simplicity. 

Wheels with the 177D hub are the following 2015 

Rim-brake versions: 202 Tubular and 202 Firecrest Carbon Clincher, 303 Firecrest Tubular and Carbon Clincher, 808 Tubular and Carbon Clincher, 30 Course Tubular and Clincher

Disc-brake versions: 202 Firecrest Disc-brake Carbon Clincher Disc-brake, 303 Firecrest Disc-brake Tubular and Disc-brake Carbon Clincher, 30 Course Disc-brake Tubular and Clincher 

• 1.8 mm spacer is included for use with XD cassettes
• Cassette Body Type: SRAM XD 11/12 Speed , SRAM XDR
• Material: Aluminum