HEADSET AND SPACERS Since any resistance robs energy and could mean the difference between Olympic gold and a walk of shame, we went with lightweight performance that we trust. Speedline’s integrated headset uses only the highest-performance sealed bearings and pairs them with lightweight aluminum races and hardware to chase away the grams. To pull it all tight, we spaced out our head tube with Speedline’s Carbon spacers, available in packs of three, and without a doubt are the lightest option when it comes to headset spacing. $39 for the headset and $10 for the spacer kit.
SPROCKET We juggled a few sprockets before we chose to go with Tangent’s 4-Bolt ring. CNC-machined from 6061T6 aluminum, the 4-Bolt is 5mm wide and designed for a smooth and friction-free interface with any 1/2 by 3/32-inch chain. Weighing 4.5 ounces in a 44-tooth size, there are slightly lighter-weight sprockets on the market; but we needed a durable sprocket to handle the load of our powerful drivetrain, and for a few extra grams, that sort of durability builds necessary confidence in the gate. $39.
CHAIN Our bike needed a lightweight and durable chain, so we went with a featherweight design we have trusted for years, the Speedline Superlite full link. Halflink chains are great for a moderate load, but when it comes to Elite pull and the high-power transfer rate of our bike, a full-link chain was a must. The Superlite features hollow pins and large void link plates to save weight, but it also benefits from a patented heattreating process to maximize strength. $39
SPROCKET BOLTS No detail was spared on this ride, where even the chainring bolts are trick. The Torx T-30 chainring bolts from FSA are made from cold-forged 7075/T6 alloy for strength and durability and designed for use with a Torx wrench (provided) to eliminate stripping and deforming under load. $15
BRAKES AND LEVER For lightweight, stiff and precision performance, TRP’s Donny Robinson signature V-brakes are impossible to beat. They feature forged-aluminum arms for maximum power transfer and modulation and are fit with titanium pivot bushings and bolts to save weight. The kit is also available with a carbon fiber brake lever that weights a mere 2.8 ounces and is a perfect match for our performance needs. Kool Stop brake pads finish the set off nicely and meet our high, ready-to-ride standards. $99
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