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The bright front headlight and twin rear tail lights were great to have in traffic, and while the bike has an electric horn, it would be a nice if a regular (and familiar) bike bell came along for the ride as well. Besides a few small rocks going for a noisy ride through them, they worked well, stayed in place and actually look good. The fenders were great to have but hug the big tires pretty closely, some more clearance would be nice. The triple-clamp mounted forks give the front end a lot of stability that helps offset some of the vague feel of the heavy, wide tires. I’d like to see Cyrusher go to a rear shock with some pre-load adjustability as the current unit is their try at one-shock-fits-all, but it does come commendably close. The shock works through a cantilever and could use some adjustability, but overall worked quite. A fun, bike on a fun hill is oen of life’s simple pleasures. With plenty of battery power remaining, I roll back to the top of the butte and go for a second run as the first leaves begin to trickle down from the maple trees sprinkled among the many firs on the butte. Bounding down the trail, I realize I’ve forgotten about “the review” and I’m just having a whole lot of fun on the XF-900. When re-engaging the pedals, the XF-900 comes on the gas (er, power?) smoothly so there are no sudden surges heading into a tight corner. Heading down some single track, the XF-900 breezes over rocks and roots, and bounds down the trail under gravity assist, no doubt helped by my considerable mass as well.
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MORE FROM FORBES Review: Rad Power Bikes' RadRover 5 Is The Hummer Of Electric Bikes By Bill Roberson I carry a small self-contained electric pump in my bike kit bag to adjust tire pressure. Heading downhill, I ticked down the assist to level two as the top setting is a bit much going down the trail, and I aired down the tires a bit for more traction. Mountain bike trail in view, I dropped to low gear and effortlessly charged up the gravel hill to the top of the butte at nearly 20 mph using the twist throttle and assist, the battery still showing five nits of charge even after the 5-mile ride to the park and the uphill trip. A large chainring sits a bit low so be sure to loft the bike over obstacles.
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