The best e-bike upgrades are cheap. A $25 bell gets used every ride; a $400 suspension seatpost might not. This is the gift-guide edition of our accessory coverage: eight picks, all under $50, all things e-bike riders actually use — with real prices verified this week and honest notes on what each one is and isn’t.
Every pick links to a deeper guide where one exists, so this page doubles as an index of the whole site.
1. Knog Oi Classic bell — $20–30
The bell that doesn’t look like a bell. The Oi wraps around the handlebar in a low-profile ring — Small fits 22.2 mm bars, Large fits 23.8–31.8 mm — with a spring-loaded striker that produces an unusually musical chord rather than a single harsh note. Built-in cable management keeps your cockpit tidy, which matters on e-bikes. The Luxe version (brass dinger, ~$45) is prettier but misses the price cap.
Check price →2. Crankbrothers M19 multitool — $36–40
Nineteen functions in 175 g: hexes 2–8 mm, T-10/T-25 Torx, Phillips and flat drivers, 8/10 mm open wrenches, spoke wrenches, and a chain tool. E-bikes vibrate things loose — a multitool in your frame bag turns a mid-ride rattle into a 30-second fix instead of a walk home. The M19 is the sweet spot: the M17 drops the chain tool, the M20 adds weight you don’t need.
Check price →3. Ascher USB rechargeable light set — $20–25
The commuter’s be-seen kit: 500-lumen USB-rechargeable headlight plus a tail light, usually around $20–25 for the pair. Not a see-the-road light — that’s a bigger purchase (our night-riding guide) — but the correct, cheap answer to “be legal and visible after dark.” Rechargeable beats the disposable-battery sets on running cost within a season.
Check price →4. BV bike light set — $10–15
The ultra-budget version of #3: BV’s 5-LED headlight + 3-LED tail set runs on AAA batteries and has 37,000+ reviews at 4.3 stars. It’s the “keep a set in your desk drawer” light — not as bright or as durable as the Ascher set, but unbeatable at the price. Buy rechargeable AAAs with it or the battery cost eats the savings.
Check price →5. Hafny HF-MR095 mirror — $18–23
Real glass, anti-glare coating, and a clamp mount that fits 21–26 mm flat bars without needing an open bar end — which is exactly why it’s the e-bike-safe mirror pick (full mirror guide). At e-bike speeds you share lanes with cars; a mirror is the cheapest awareness upgrade there is.
Check price →6. Elevation Lab TagVault Bike — $20
The AirTag mount that turns Apple’s tracker into a bike-recovery device: straps under your bottle cage with security screws, IP67 waterproof, nearly invisible (full tracker guide). The mount is $20; the AirTag itself is ~$29, so the complete setup lands just under $50. The best cheap insurance for a $2,000 e-bike.
Check price →7. Park Tool IB-1 multitool — ~$19
The minimalist’s multitool: Park Tool’s I-Beam packs the hexes and drivers you actually use trailside into a tiny folding package for under twenty bucks. If the M19 above feels like overkill, this is the one-ride-a-week rider’s version. Park Tool quality at a stocking-stuffer price.
Check price →8. Tile Sticker — $24.99
The Android rider’s tracker: adhesive-backed, IP68 waterproof, 250 ft range, ~3-year battery, and it drops onto the Life360 family map. Stick it inside a frame bag or under a saddle. Smaller finding network than Apple’s — so it’s a “where did I park it” device more than a “recover my stolen bike” one — but at $25 it’s the cheapest tracking you’ll buy.
Check price →The under-$50 starter kit
If you’re buying for a new e-bike rider and want the whole package: Oi bell + BV lights + Hafny mirror + M19 multitool comes in around $90–110 total and covers the four things every new rider actually needs — be heard, be seen, see behind, fix the bike. Everything else is a nice-to-have.