Cognition V2:
Front drive side: 266mm
Front non drive side: 264mm
Rear drive side: 264mm
Rear non drive side: 260mm
ZR1 SL:
Front drive side: 268mm
Front non drive side: 264mm
Rear drive side: 262mm
Rear non drive side: 262mm
ZIPP service kits and spare parts are best obtained through your local shop or dealer. See our dealer locator, below, to find a dealer near you. If no one is currently listed near you, then please search for local shops via your preferred web browser.
https://www.sram.com/en/dealer-locator
Manuals and additional information about ZIPP and SRAM components can be found at our service site, linked below.
https://www.sram.com/en/service
Further questions?
Reach out to Rider Support by Asking A Question at the link below.