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- Belows front suspensions
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- Front suspensions
- Fuel tanks
- Handle grips
- Handlebar switch controls
- Handlebars
- Headlights
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- Mirrors
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- Rear suspensions
- Seats
- Silencers
- Speedometers
- Thermal strips
- Turn signals
- Air filters
- Belows front suspension
- Brake & Clutch levers
- Electric box
- Exhaust
- Fenders
- Foot pegs
- Front protection
- Front suspensions
- Fuel tanks
- Handle grips
- Handlebar switch controls
- Handlebars
- Headlights
- License plate holders
- Mirrors
- Mudguards
- Rear frame
- Rear light
- Rear suspensions
- Seats
- Silencers
- Speedometers
- Thermal strips
- Turn signals
- Air filters
- Belows front suspensions
- Brake & Clutch levers
- Electric box
- Engine protection
- Exhausts
- Fenders
- Foot pegs
- Front suspensions
- Fuel tanks
- Handle grips
- Handlebar switch controls
- Handlebars
- Headlights
- License plate holders
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Regulatory / Safety Note – Radial Master Cylinder
Technical / Safety Notice – Radial Master Cylinder
This replacement master cylinder is designed for race, off-road or custom motorcycles. Brake-system rules vary worldwide—review the table below before using the part on public roads.
| Region | Key Rules & Tests | Your Responsibilities |
|---|---|---|
| USA | FMVSS 122 & defect-reporting (49 CFR 579) | Product is not DOT type-approved; installer must keep the motorcycle compliant. Perform a pressure test 35 bar (500 psi) after install and re-bleed after the first ride. |
| EU / UK | Reg. (EU) 168/2013 + UNECE R78 | Not E-marked / R78-approved; on-road use requires competition status or individual inspection (TÜV, Dekra, MOT). Provide pressure-test and lever-ratio print-out if requested by the inspector. |
| Australia / NZ | ADR 33/00 under VSB 14 (mod code LO1) | Bore-size change may need an engineering sign-off. Supply the pressure-test certificate; verify that ADR 33 stopping-distance tables are still met. |
Universal installation notes
- Compatible fluid: DOT 4 / DOT 5.1 glycol only — do not use DOT 5 silicone or mineral oil.
- Mounts on 22 mm (⅞″) or 25 mm (1") handlebars. Torque clamp bolts to 12 N·m (106 lbf·in).
- Best match for dual-disc systems or single discs with total caliper piston area ≥ 34 cm².
- Remote reservoir (30 ml) and banjo bolt with copper washers are included; bleed system thoroughly.
⚠️ Improper sizing, installation or maintenance can cause brake failure, serious injury or death. Install and use at your own risk.
⚠️ California Proposition 65: This product can expose you to chemicals including nickel and hexavalent chromium. For details visit P65Warnings.ca.gov.