The Ultimate DIY Archive for the World’s Most Popular 125cc and 150cc Motorcycles & Scooters.Â
Most manuals tell you what the part is. We tell you how to keep it from breaking. Select your model below for verified specs and 'Garage Wisdom' field notes.Â
📱 Smartphone Optimized: Built to be read in the garage. High-contrast text and zoomable diagrams.
🔧 Zero Jargon: Written for real owners, not factory technicians. We explain the 'why' and the 'how'.
⚡ Instant Access: Field-Ready Data: Download once and access in the garage even without Wi-Fi. No more scrolling through 500-page    PDFs to find one bolt torque.
Do you cover other 125cc models?
 "We are constantly expanding our library. If you don't see your bike here, [Join our Mailing List/Contact Us] to be notified when the next Bible drops."
Is this a physical book or a PDF?
 "These are high-quality digital guides (Kindle/E-book) designed for instant access on your phone, tablet, or PC while you work."
Are these official factory manuals?Â
Our Bibles are independent, high-quality technical guides. We consolidate factory-spec data, torque settings, and service intervals into a format that is much easier to read and follow than a standard 500-page workshop manual. We focus on what the DIY owner actually needs to know.
Yamaha Range:
Yamaha YZF-R125 (V1/V2) Technical Bible & Specs | Yamaha R15 (V3/V4/VVA) Technical Bible & Specs | Yamaha Aerox 155 (V1/V2) Technical Bible & Specs
European 2-Stroke Classics:
Cagiva Mito 125 (Evo/SP) Technical Bible & Specs | Aprilia RS 125 (Rotax 122/123) Technical Bible & Specs
Modern 4-Stroke Sport & Street:
KTM Duke & RC 125 Technical Bible & Specs | Honda CBR 125R Technical Bible & Specs |
Scooter & Commuter Technicals:
Honda Click / Vario 125/160 Technical Bible & Specs  | Suzuki Raider R150 Technical Bible & Specs