Are narrower tyres “faster” – rolling resistance

Are narrow tyres faster?

Updated: 28/03/2019. This post explains what rolling resistance is, what affects it and how it can be minimised. Contents:1. What is rolling resistance?2. What affects the rolling resistance?….2.1. Tyre’s mass (“weight”)….2.2. Tread pattern….2.3. Sidewall and rubber compound quality….2.4. Aerodynamic drag….2.5. Air pressure in the tyre….2.6. Tyre (wheel) diameter….2.7. Tyre width….2.8. Road conditions3. Conclusion? 1. What … Read more Are narrower tyres “faster” – rolling resistance

Pros and cons of bicycle disc brakes (compared to rim brakes)

Advantages and disadvantages of bicycle disk brakes

Updated: 09/09/2019. This post provides a short overview of advantages and disadvantages of bicycle disc brakes, compared to rim brakes (whether they are cantilever, road, or V-brakes). When comparing, it is understood that the brakes are of a good build quality and set up properly. Update: if it helps anyone, I made a series of … Read more Pros and cons of bicycle disc brakes (compared to rim brakes)

Types and designs of bicycle bearings

Types and designs of bearings used for bicycles

Updated: 08/11/2018. This post will explain what kinds of bearings are (mostly and usually) used with bicycles and what their advantages and disadvantages, compared to other commonly used bicycle bearing systems are. For bearing ball standards, see: Standard bicycle bearing ball sizes.   1. Cup and cone bearings Bicycle bearings commonly use bearing balls, placed … Read more Types and designs of bicycle bearings

Standard bicycle bearing ball sizes

Standard bicycle bearing ball sizes

Updated: 24/12/2019. Bicycles usually use ball bearings. Modern cartridge bearings come as a closed unit – with balls and races packed in a single unit. However, many bicycles still use older, cup and cone system, where balls can (and should) be replaced with new ones when servicing bearings. This is the case with most Shimano … Read more Standard bicycle bearing ball sizes

New threaded BB standard: T47

T47 bottom bracket standard, also known as Thread Fit 30i BB standard

Updated: 16/11/2018. This post explains threaded T47 bottom bracket (BB) standard. Look here for explanation of all the other BB standards.   1. Description of T47 standard T47 is a modern standard with BB cartridges screwed into the frame BB shell threads. Developed by Chris King and Argonaut Cycles companies. Announced in 2015, also known … Read more New threaded BB standard: T47

Bottom brackets [02] Threadless – press fit BBs

Threadless (press-fit) bottom bracket (BB) standards

Updated: 16/11/2018. For basic terms explanation and history of BBs, as well as threaded BB standards, read this article: Bottom bracket standards – 1st part. BBs with press fit (threadless) cups usually use cranksets with the spindle (axle) attached to the right crank arm. For installing, and especially for replacing, BB cups, special, expensive tools … Read more Bottom brackets [02] Threadless – press fit BBs

Bottom brackets [01] Threaded BBs

Threaded bicycle bottom bracket (BB) standards

Updated: 24/01/2020. This post will explain bicycle bottom bracket standards. It is the first in the series of posts on the subject, explaining basic terms, then each standard. Most threaded standards are explained, while a separate post explains press-fit (threadless) bottom brackets. The last post will address BB and crankset compatibility and interchangeability. 1. What … Read more Bottom brackets [01] Threaded BBs

Mechanical bicycle brakes – working principle

Mechanical advantage and bicycle brake working principle

Updated: 27/08/2019. This post will explain the basic principles of mechanical brakes functioning, i.e. brakes that use cables. Hydraulic brakes will be explained in a separate article. Though I have made a video explaining hydraulic brake working principle. Different post explains brake (and shifter) cable and housing standards. 1. Introduction – mechanical advantage Mechanical brakes … Read more Mechanical bicycle brakes – working principle

Mounting bicycle tube and tyre

Replacing (mounting) bicycle tyre and tube. Tools needed, step-by-step instructions...

Updated: 08/11/2018. This post explains how to mount bicycle tubes and tyres onto the rim. If needed, see posts on how to how to remove wheels, how to remove tyres and tubes, and how to patch punctured tubes. 1. Inspect the rim It needs to be without sharp edges. Straight, without bends. 2. Make sure that … Read more Mounting bicycle tube and tyre

MTB wheels: 26″ vs 27,5″ vs 29″ 29er

MTB bicycle wheels - 26" compared to 27.5" and 29" ("29er")

Updated: 08/11/2018. What are the best wheels for a mountain bicycle? 26″, 27.5″, or 29″? This post gives a comparison (overview) of differences, advantages and disadvantages of each of the standards. Standards in numbers Detailed explanation of wheel sizes can be found in this post: Tyre dimensions. 26″ is a marketing term for a wheel … Read more MTB wheels: 26″ vs 27,5″ vs 29″ 29er

To what pressure should I inflate my bicycle tyres?

To what pressure should I inflate my bicycle tyres?

Updated: 08/11/2018. This post answers a frequently asked question: “To what pressure should I inflate my bicycle tyres?” Related posts explain: Slick bicycle tyres, Rolling resistance – are narrower tyres faster and Bicycle winter tyres. Contents: 1. What is the role of air pressure in tyres? 2. What is the optimal tyre pressure? …2.1. What … Read more To what pressure should I inflate my bicycle tyres?

Slick bicycle tyres

Slick bicycle tyres. Are they good? Do they grip well in the wet?

Updated: 08/11/2018. Many cyclists have doubts when it comes to slick tyres and their grip, especially on wet pavement.  This post will address slick bicycle tyres, their strengths and weaknesses. Contents: 1. Role of tread pattern on bicycle tyres …1.1. Off-road conditions …1.2. Paved roads 2. Wet pavement with puddles …2.1. A few words about car tyres … Read more Slick bicycle tyres

Bicycle wheels – how many spokes?

Bicycle wheels and spokes - explanation of construction, hubs, rims, how many spokes etc.

Updated: 02/08/2019. This post explains bicycle wheel construction. What makes a strong spoked wheel, how many spokes is the optimal choice. For explanation on how to remove and mount a wheel, read this post: How to remove a wheel. Differences in wheel size: 26 vs 27.5 vs 28/29″ wheel sizes comparison. Tyre size: tyre (and rim) … Read more Bicycle wheels – how many spokes?

Bicycle rim tape explained

Bicycle rim tapes - types, dimensions, how to choose a good quality bicycle wheel rim tape and mount it correctly

Updated: 16/11/2018. This post shortly explains important things concerning bicycle rim tape. Many cyclists already know all this, but many don’t – author of the text has often had bicycles brought into his bicycle repair shop with tubes punctured, or damaged from the rim, or the spokes – because of rim tape problems.   1. … Read more Bicycle rim tape explained

Rear bicycle hub

Bicycle wheel rear hub - types, standards, dimensions (width), freehub vs freewheel...

Updated: 18/11/2018. This post explains basic things about bicycle rear hubs, i.e. rear bicycle wheel hubs.   1. Rear hub role Rear bicycle hub has one main role, that is allowing the wheel to turn freely, while keeping it attached to the frame at the same time. Also, unlike the front hub, the rear hub … Read more Rear bicycle hub

Bicycle tubes – valve and tube types explained

Bicycle tyre inner tube - types, sizes, valve types (dunlop, presta schrader/auto)...

Updated: 08/11/2018. Most bicycles, except some tubeless models, use tubes in their tyres. Tubes are used to hold the air in, of course, while the (outer) tyre is responsible for firmness and grip with surface. This post will explain important things concerning bicycle tubes, including: dimensions (sizes), valve types (schrader, presta, dunlop…), valve lengths etc. … Read more Bicycle tubes – valve and tube types explained