QB/T 4757-2014General technical requirements of throttle and brake lever used on electric bicycles (English PDF)

QB/T 4757-2014 is the English-translated version of 电动自行车用调速转把、断电闸把通用技术条件.

QB/T 4757-2014 is the Chinese industry standard "General technical requirements of throttle and brake lever used on electric bicycles". It was issued on July 9, 2014 by the Ministry of Industry and Information Technology, and took effect on November 1, 2014. It is obsolete: it has been replaced by QB/T 4757-2024.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

1. 1

   Add to cart

   Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.

2. 2

   Checkout

   Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).

3. 3

   Instant delivery (0–9 sec)

   Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.

4. 4

   Invoice included

   A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.