Every answer, researched and cited.
~30 sources per product, one verdict, with receipts — every claim linked. The gear decisions riders are weighing, the products we’ve taken apart, and the repair jobs done right.
Not a spec sheet on one part — the question behind it. What's changing, what the evidence says, what riders report.
- Crank lengthShould you go shorter?Across cranks from 120 to 220mm, maximum power moves about 4% — the lever was never where the watts were.Read the research →
- Handlebar widthShould you go narrower?Narrow is the new aero — and from 2026 the UCI is drawing a line at 400mm.Read the research →
- Tyre widthShould you go wider?At the same pressure a wider tyre and a narrower one press the same-size contact patch into the road — the wider one's is just shorter and fatter, so the casing flexes less each rotation and wastes less energy.Read the research →
- Chain wearWhen should you replace it?Your chain never stretched. The pins and rollers wore, the spacing opened up — and the part that gets expensive if you ignore it is the cassette, not the chain.Read the research →
- Chain lubeShould you switch to wax?A properly waxed chain can run thousands of gritty kilometres with almost no measurable wear, where a wet oil chews through more than a chain over the same distance — the real case for wax is drivetrain life, not watts.Read the research →
- 1x vs 2xDo you still need the front derailleur?Dropping the front derailleur buys real simplicity and no fumbled front shifts — but a single cassette physically can’t give you both a 2x’s total range and its tight jumps, so you’re always trading one for the other.Read the research →
- Tubeless sealantHow often does it actually need replacing?The two biggest sealant brands disagree by a factor of three about how long their own product lasts — which is why every interval you have been given is a guess wearing a number.Read the research →
- Tyre pressureWhat should you actually run?Ten psi too high cost nine watts. Ten psi too low cost one. The penalty for guessing is not symmetrical, and almost everyone guesses upward.Read the research →
- Cassette wearDoes it have to go with the chain?There is no gauge for a cassette. The accepted test is to fit a new chain and see whether it skips — which means you find out after you have already bought the chain.Read the research →
- Chainring wearWhen does a worn ring actually matter?Worn chainring teeth take the shape of a shark's fin — and the inner ring and the outer ring tell you they are finished in two completely different ways.Read the research →
Bikes, wheels, tires, power meters — every page paid for, taken apart, and cited. Pick a type or dive into the newest.
- Road bike9 researched
- Gravel bike3 researched
- Nutrition3 researched
- Cycling Shoes2 researched
- Groupset2 researched
- Helmet2 researched
- Wheelset2 researched
- Bike Computer1 researched
- Bikepacking Bag1 researched
- E-bike1 researched
- Mountain bike1 researched
- Power Meter1 researched
- Saddle1 researched
- Tire1 researched
- Trainer1 researched
+ 375 more waiting — fund the first deep dive on any of them below.
Recurring-care how-tos, cited to their sources and reviewed by a human — with an honest note on when to hand the job to a shop.
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