Shimano Acera MT420 4 Piston Disc Brake Caliper - nero - Front or Rear, nero

Shimano acera mt420 4 piston disc brake caliperperfectly suited for mtb, trekking and even e-bike riding, this hydraulic disc brake caliper offers consistent braking performance and reliable stopping power in all conditions.

It features a four piston caliper that instils greater downhill confidence and control, whether youre shredding the trails or exploring the off-road.

In comparison to its 2-piston predecessor, this model offers a 20% increase in braking power and a 150% increase in wear-resistance.

This makes it more then capable of handling all the challenges that are associated with all-day epics in the mountains.

Features:material: aluminium painteduse: mtb, trekking and e-bikepad mount: split pinpad standard: d03s resin.

D02s metalone way bleeding: yesoil: shimano mineral oilmount type: post-typehose joint: straightfixing bolt tool size: 5mmcaliper fixing bolt: snap ringbrake type: hydraulic disc brakebrake hose type: sm-bh90-ssrecommended brake lever: bl-mt401, bl-mt402-3arecommended brake rotor: sm-rt30.

, sm-rt54.

, sm-rt56.

, sm-rt64pad compatibility:.

Only compatible with resin padnumber of pistons: 4front or rear: can be used as eithersingle or pair: singlepart number: brmt420frtechnologies:four piston: disc brake system with the dual diameter opposed-piston caliper design has differently sized pistons in front and in the rear.

The system adopts a power transfer system in which the disc brake rotor is pressed by the smaller sized piston at the entrance of the disc brake rotor intake and also by the more powerful larger sized piston at the back.

This prevents the wobbling motion of the disc brake rotor and reduces noises significantly.

The 4-piston caliper also allows a wider contact area for the disc brake rotor while keeping the size compact, and the efficient location of pads is adjusted as necessary to stabilize the pressure.

In combination use with the servowave lever it provides an incredible 50% more stopping power than the previous model.

The advanced saint.

Zee disc brake system, which adjusts to accommodate the different braking styles of different riders, offers stable braking power and excellent modulation.

One way bleeding: “one way bleeding” was developed for quick and easy prevention of air in our hydraulic system.

We have streamlined the oil route throughout the system to prevent air bubbles from being captured in the system.

One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system.

A 2-year warranty is offered with all shimano products from chain reaction cycles (3 years on dura-ace and xtr products).

Buy shimano components from chain reaction cycles, the worlds largest online bike store.