Triumph Speed 400 brake disc / rotor

Brake disc / rotor for the Triumph Speed 400: when to replace it, what it costs, where to buy it and how to fit it.

ReplaceEvery 2-3 sets of pads or below min thickness

Typical priceUS$ 30 to 250

Difficulty3 of 5

Safety-criticalYes

Brake disc / rotor for the Triumph Speed 400

Workshop photos

Front disc and caliper on a spoked wheel

Rear brake disc and swingarm with axle block

Front disc brake with the axle nut labelled

Twin-piston caliper with the piston and O-ring labelled

Where to buy

Check the part number for your model year before you buy. Genuine (OEM) parts first; good aftermarket parts are fine for wear items. Links open shop searches; Moto Zero earns nothing from them today and will say so here if that changes.

Fit it yourself

Check a brake discHome workshop · 20 to 40 min Replace disc brake padsHome workshop · 30 to 60 min per caliper

See it working in 3D →How it works

Fitment

Model	Triumph Speed 400
Type	Retro
Engine	400 cc
Final drive	Chain
Brakes	Disc
Main markets	UK/IN

Questions

How often should I replace the brake disc / rotor on a Triumph Speed 400?

As a guide, Every 2-3 sets of pads or below min thickness. The owner's manual for your model wins, and riding on dusty roads, with a passenger or with heavy loads shortens it.

How much does a Triumph Speed 400 brake disc / rotor cost?

Typically US$ 30 to 250, depending on genuine or aftermarket and the shop. Prices are indicative.

Can I replace the brake disc / rotor myself?

The job is rated 3 of 5 for difficulty. It is safety-critical: if you are not sure, have a mechanic check your work before you ride.