I’ve ridden the Triple Bypass Route a bunch, but you could ride out to Golden, then up Lookout Mtn dropping you close to 1-70 & the frontage road, which goes through Idaho Spr. The frontage road winds back & forth heading up to Eisenhower Tunnel & Loveland Ski Area. One small section is on 1-70. Then up and over Loveland Pass, to Copper Mtn & over Vail pass to Vail via the bike trail.
Should be fun.
I did a 300k -Denver Aspen -many years ago. This is easier but still, lots of climbing!
Enjoy!
Deb
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