Adjustable Angle Stem, 1-1/8 Threadless, 31.8 mm Clamp (generic)

Ergon GP1 Ergonomic Grips

Best for: Riders with numb or tingling hands · Upright commuter and cruiser e-bikes · Replacing slippery stock grips

Riser Handlebar, 31.8 mm, Swept-Back Comfort (generic)

Swapping a flat bar for a riser with a bit of back-sweep brings the grips up and toward you, relaxing the wrists and shoulders; on a commuter e-bike it can be the difference between a bike you ride and one you avoid. Generic alloy risers with 31.8 mm center clamps, around 680 mm width and 40–60 mm of rise are widely sold. The 22.2 mm grip sections accept standard grips, levers, shifters and throttles. Moving controls over is an afternoon job; be ready for cables and the display lead to come up short if you go much higher.

Best for: Riders who want a more upright position than a flat bar gives · Commuters with wrist and shoulder discomfort · Replacing a bent bar

Julet 5-Pin Display Extension Cable, 30–60 cm (generic)

Raising the bars, fitting a longer stem or moving a display often leaves the cable an inch too short, and the Julet 5-pin extension is the fix. It is a male-to-female waterproof lead in the same keyed format as the display connector on most KT, Lishui and generic controllers. Lengths from 30 to 100 cm are sold; buy the shortest one that reaches so you are not stuffing loops of cable behind the head tube. The same 5-pin format is used by some throttles and lights, so double-check what the lead on your bike is actually feeding before you order.

Best for: Riders who raised the handlebars or changed stems · Cargo and long-tail conversions with long cable runs · Relocating the display to the center of the bar

Ergon GP1 Ergonomic Grips

The Ergon GP1 is the ergonomic grip that most riders with numb hands end up with. Its wing-shaped platform spreads pressure across the palm instead of concentrating it on the ulnar nerve, and a lock-on clamp keeps it from rotating. On an upright e-bike it is a big comfort gain. It is sold in regular and large sizes and in a few versions for twist shifters and twist throttles that use a shorter grip on one side; pick the version that matches what is on your right bar. Fit it angled slightly downward and adjust until your wrist feels neutral.

Best for: Riders with numb or tingling hands · Upright commuter and cruiser e-bikes · Replacing slippery stock grips