Tension Test

A parked frame blocked the southern corner. Heavy alloy, twin wheels. A bicycle. I scaled the rear spokes and locked my boots onto the derailleur cage. Intricate mechanical assembly. High-grade chain links coated in dry graphite. Unacceptable slack on the lower loop. I drove the butt of my rifle against the tension pulley until the internal spring fought back with brutal force. Steel groaned. The teeth aligned into maximum bite. No slip. No failure. Machine status verified combat-ready. Move.