The Ultimate DIY Archive for the World’s Most Popular 125cc and 150cc Motorcycles & Scooters.
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.
Next Bible ? send your suggetions below
📱 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?
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 | Yamaha MT125 MT15 Techinical Bible and 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 | Honda CRF150 Technical Bible & Specs
Scooter & Commuter Technicals:
Honda Click / Vario 125/160 Technical Bible & Specs | Suzuki Raider R150 Technical Bible & Specs