E-Bikes
Best e-bike on Amazon
Heybike Mars 2.0
Riders who want the most published numbers
The listing that publishes the most numbers, and the biggest battery figure Amazon prints on a folding bike here.
Why it won →Road · Gravel · E-Bikes
Trusted cycling gear guides,
with the working shown
Published specs, cited sources, live prices, and arithmetic you can re-run. We haven’t tested any of it — and that’s exactly why you can check everything we say.
What we’d buy
77 live prices · verified Jul 17, 2026
The top pick from every roundup on the site, with the current Amazon price. Click the category to see why it won — and what we told you to skip.
E-Bikes
Best for commuting
Heybike Cityscape 2.0
The everyday pavement commute
The only bike here that's sold as a commuter, publishes its battery honestly, and doesn't dress up as something else.
$595.00 · View on Amazon
Why it won →$699.00 −15%
E-Bikes
Best value e-bike
ENGWE L20
The most published watt-hours per dollar
The cheapest watt-hour on Amazon that we're willing to stand behind — and the most bike attached to it.
Why it won →E-Bikes
Best step-through e-bike
Heybike Ranger 2.0
A published step-through frame with a published battery
The only e-bike on Amazon that publishes both a step-through frame and a straight watt-hour figure.
$719.99 · View on Amazon
Why it won →$799.99 −10%
Gravel
Best gravel tyre
Panaracer GravelKing SK
Loose, rough gravel
The knobbed tyre that posts a smoother tyre's rolling resistance in the one dataset that publishes any.
Why it won →Road
Best bike light
Cygolite Metro 800
One front light, all year
The only light here that publishes a serious ingress rating and a daytime mode at a commuter price.
$37.20 · View on Amazon
Why it won →$41.79 −11%
Road
Best bike computer
iGPSPORT BSC100S
Most riders, honestly
The only computer on this page whose listing publishes both a screen size and a battery figure — for a fraction of the money.
$37.95 · View on Amazon
Why it won →$39.99 −5%
Components
Best bike chain
Shimano CN-HG601 105 11-Speed Chain
11-speed Shimano drivetrains
Shimano's own spec sheet says it weighs the same as the Ultegra chain. It costs less. That's the whole argument.
Why it won →Kit
Best cycling helmet
Bell Formula MIPS
Most riders — MIPS at the lowest price, with a fit range you can measure against
The cheapest MIPS helmet here, and the only listing on this page that publishes a head circumference in centimetres.
Why it won →Kit
Best bib shorts
Baleaf Cycling Bib Shorts
A first pair of bibs, bought to answer a question you can't answer any other way
The cheapest sensible way to find out whether bibs work for you — and its listing publishes more than the ones costing three times as much.
Why it won →Workshop
Best chain lube
Silca Super Secret Chain Lube
Lowest drivetrain wear
The drip-on wax that keeps showing up at the top of the published wear tables.
Why it won →Workshop
Best multitool
Lezyne V Pro 17
Knowing exactly what you're carrying
The only tool here that publishes what's inside it — and the list happens to contain everything that matters.
Why it won →Prices live from Amazon as of Jul 17, 2026. We earn a commission if you buy — here’s how that works. #ad
Everyone in this category says they tested twenty bikes. We have not tested any, and we say so.
We have no lab, no test fleet and no testers. Not one product on this site has been in our hands. We could hide that behind the usual phrasing — “in our testing”, “our experts” — and you’d have no way of catching us. That’s exactly why we don’t.
So here’s what we do instead.
We read the manufacturer’s published specs and tell you they’re the seller’s claims, not facts. We compute running costs and show every input, rate and date so you can re-run the arithmetic. We cite third-party test data with its conflicts disclosed— the big chain-wear dataset everyone quotes as “independent” comes from an outfit that sells the lubricants it tests, and we say so every single time. And when nobody has published a number, we print that instead of inventing one.
Read how we research — it’s the most important page here.
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Products we claim to have tested
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Sponsored placements, ever
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Free products accepted
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Star ratings we invented
Six decisions, six hubs
ElectricE-Bikes
The motor is the easy part. What decides your purchase is the battery, the class, and what the thing actually costs to run — so that's what we compute.
Loose surfacesGravel
Gravel is a tyre-clearance number and a gearing decision wearing a marketing category's clothes. Get those two right and the rest follows.
TarmacRoad
Being seen, knowing your numbers, and sitting comfortably for four hours. Everything else on a road bike is negotiable.
DrivetrainComponents
Groupset tiers are a pricing ladder with engineering attached. Here's what each rung actually buys you, and where the ladder stops being worth climbing.
What you wearKit
A helmet is a certified safety device and a bib short is a chamois with straps. Both are bought badly, for the same reason: nobody explains what's inside them.
MaintenanceWorkshop
The cheapest performance upgrade on any bike is a clean drivetrain. This is the hub where we show the working.
Read these first
Four pages that show what this site is for: the arithmetic nobody else publishes, the conflict nobody else discloses, and the two facts the industry would rather you didn’t know.
What an E-Bike Costs to Run
Cost per charge, cost per mile, and 1,000 miles against a car — every input sourced, every step of the working shown.
Read the full guide →
Best chain lubeThe Best Bike Chain Lube
Wax vs dry vs wet, the published wear data behind the claims, and live cost per millilitre across seven bottles.
Groupset Hierarchy Explained
The Shimano and SRAM tier ladders, priced in published grams. What you get climbing from 105 to Ultegra, and why Shimano prints no weight at all below 105.
Read the full guide →
Helmet Safety Standards Explained
CPSC 1203, EN 1078, MIPS and the Virginia Tech ratings — what each actually measures, with the numbers taken from the regulations themselves.
Read the full guide →Understand it properly
What an E-Bike Costs to Run
Cost per charge, cost per mile, and 1,000 miles against a car — every input sourced, every step of the working shown.
Read the full guide →
E-Bike Battery Range Explained
The one battery spec that compares across brands, how to compute it from volts and amp-hours, and the listings that make it impossible.
Read the full guide →
How Far Can an E-Bike Really Go?
Every range claim on Amazon, reverse-engineered into the watt-hours-per-mile it assumes — and what the suspicious uniformity tells you.
Read the full guide →How this is funded
Chainring Clubis funded entirely by Amazon Associates commission. If you buy through a link here we earn a percentage, at no extra cost to you. Commission never decides a pick — every roundup on this site names at least one product to skip, and our rankings routinely put cheap things above expensive ones, which is the opposite of what a commission-maximising site does. We accept no sponsored placements and no free products.