I disagree with the OP's requirements. My first requirement would be comfort ( suspension ) and second would be a super low gear for climbing. I toured across the country twice and averaged 12.5mph. Hence I'm confused by the 100 gear inch requirment.
The mini gear inches is located at the bottom of the page. The chain drive model says:
Chainring/Cog: 52T/25T
Gear Inches: 28 ( 1st gear ) - 91 ( 8th gear )
Chain: KMC Stainless Steel
Thanks
Yan