Just my opinion, but I wouldn't ride my good road bike on a non-paved crushed limestone trail. It's safe enough. Road tires can handle that type of trail. But it does bad things to your bike components....... all that gritty gravel dust gets embedded in all the little tiny parts and you cannot get it out without disassembling the bike! The grit grinds and grinds on everything. I could not do that to a good, new bike. Especially if you have another option. Just think, if you keep riding the hybrid on the trails, how FAST and smooth the road bike will feel when you get out on the roads! Of course you want to ride the new one. Hopefully you will be able to find some routes on the road that you will enjoy and feel comfortable doing. (Look for those hills!
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Time is a companion that goes with us on a journey. It reminds us to cherish each moment, because it will never come again. What we leave behind is not as important as how we have lived." Captain Jean Luc Picard