The Zephyr Zone

Admittedly I’m not actually sure if this is a Zephyr or not, mostly because it’s been customized, but also because I’m not familiar with all the details of the bigger Zephs. But I saw this on my bike ride into work this morning, and stopped to snag a pic.

Looks like it could be a GPZ1100 may be . Shaft and different cam covers. Nice big Zed though