Shenzhen SuRuiqi Technology Co., Ltd
Knowledge Centre

Material and Process Guides for Component Buyers

Written from the specifications on this site rather than from a keyword list. If an article quotes a weight, an alloy or a fabric denier, it comes from a product we actually make.

Material Guide

AL6061-T6 or AL7075 Which Alloy Belongs in Which Bike Part

Two aluminium alloys cover almost the whole machined bicycle component market. Here is why a star nut is 7075 and a pedal body is 6061.

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Process Guide

Why a Sewn Bike Bag Is Not Waterproof and a Welded One Is

Every stitch in a seam is a hole. High frequency welding removes them. Here is how to tell the two constructions apart before you buy.

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Buying Guide

Choosing a Bike Headset External or Semi-Internal

The frame decides, not the rider. A 33 mm stack against a 9.5 mm stack, and what happens if you specify the wrong one.

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Buying Guide

Quick Release Skewer Sizing 100 mm 130 mm and 135 mm Explained

Three numbers decide whether a skewer fits. Here is where they come from and how to measure yours.

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Product Guide

Four Ways to Mount a GPS Computer and When Each One Wins

Top cap, stem, out-front or integrated cockpit. 12 grams to 35 grams, and only two of them will also hold a camera.

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Material Guide

Reading a Cycling Glove Specification Panel by Panel

SBR, lycra, purlicue, CBL-1. What the terms on a glove specification actually describe, and which ones change how the glove feels.

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Product Guide

Sealed Cartridge Bearings and Why Pawl Count Matters

Two bearings, four bearings, six pawls. What those numbers on a hub or headset specification are actually telling you.

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Material Guide

Denier Explained 210D 420D 600D and 840D in Bike Luggage

Four numbers cover almost all bicycle luggage fabric. Here is what each one is for and why a good bag uses more than one.

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FAQ

About the Knowledge Centre

Who writes these guides?
They are written from the VALORIDER product specifications. Every figure quoted in an article comes from a product page on this site, which is why the examples are specific rather than generic.
Can I reuse this material in my own listings?
The technical facts are yours to use - they describe products you would be buying. Ask before republishing the text itself.
Will you write a guide on a specific topic?
If it covers something in the catalogue and would help buyers make a decision, ask and we will consider it.

Question the Guides Do Not Answer

Send it. Technical questions go to the people who machine and sew the parts, not to a sales script.