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Generic · Hydraulic disc brake set
Four-piston hydraulic braking for confident trail control
$99.99
PriceIn stock, ready to ship
This hydraulic disc brake set pairs a four-piston caliper with a two-finger BL-MT401 lever for stronger, more controlled stopping on mountain-bike trails. It is a practical upgrade for entry-level MTB builds, with resin or metal pad options and straightforward funnel bleeding.
Sold by Ashburton Cycles
Verified store
Price
$99.99
Caliper design
4-piston
Brake type
Hydraulic disc brake
Lever size
2-finger
The BR-MT420 brings four-piston hydraulic braking to your mountain bike, increasing rotor contact area for more controlled stopping and greater confidence on descents. The caliper is designed to deliver consistent braking performance, while the four-piston layout helps manage pressure for strong, stable braking with reduced rotor wobble and noise.
Matched with the BL-MT401 two-finger lever, this set is tuned for entry-level MTB use and offers an accessible 75 mm minimum reach for smaller hands. The aluminium lever has an anodised finish, while reach adjustment is made with a tool.
Choose between resin or metal brake pads to suit your preferred braking feel and riding conditions. The system uses SHIMANO mineral oil and SM-BH90-SS hose, with a straight hose joint and funnel bleeding to make hydraulic servicing cleaner and simpler. It is compatible with the listed MT400-series calipers and uses a clamp-band shifter mount.
A strong choice for entry-level mountain-bike riders upgrading to more controlled downhill braking, especially those who value accessible lever reach and easy servicing.
Four-piston caliper
More piston area supports stronger, more controlled braking for trail riding and descents.
Consistent braking control
The caliper design helps stabilise hydraulic pressure, reduce rotor wobble and minimise noise.
Two-finger aluminium lever
A compact lever shape provides practical control, with an anodised aluminium construction.
Accessible lever reach
The 75 mm minimum reach suits riders with smaller hands; adjustment is performed with a tool.
Resin or metal pads
Choose the pad compound that best matches your preferred braking feel and riding conditions.
Funnel bleeding
The hydraulic system is designed for cleaner, simpler bleeding and servicing.
MT400-series compatibility
The BL-MT401 lever is listed as compatible with BR-MT400, BR-MT410 and BR-MT420 calipers.
Every detail as listed by the manufacturer.
Generic is a catalogue designation for products presented without a distinct store-brand identity. The term describes the retail classification rather than a separate manufacturer history or geographic origin. Generic-labelled products can still have clearly defined specifications, standards and compatibility requirements. For this component, the catalogue designation is retained while the fitment details identify the relevant road bottom bracket application.
Generic · Hydraulic disc brake set
Four-piston hydraulic braking for confident trail control
$99.99
In stockCaliper design
4-piston
Brake type
Hydraulic disc brake
Lever size
2-finger
Brake fluid
SHIMANO mineral oil
This hydraulic disc brake set pairs a four-piston caliper with a two-finger BL-MT401 lever for stronger, more controlled stopping on mountain-bike trails. It is a practical upgrade for entry-level MTB builds, with resin or metal pad options and straightforward funnel bleeding.
The BR-MT420 brings four-piston hydraulic braking to your mountain bike, increasing rotor contact area for more controlled stopping and greater confidence on descents. The caliper is designed to deliver consistent braking performance, while the four-piston layout helps manage pressure for strong, stable braking with reduced rotor wobble and noise.
Matched with the BL-MT401 two-finger lever, this set is tuned for entry-level MTB use and offers an accessible 75 mm minimum reach for smaller hands. The aluminium lever has an anodised finish, while reach adjustment is made with a tool.
Choose between resin or metal brake pads to suit your preferred braking feel and riding conditions. The system uses SHIMANO mineral oil and SM-BH90-SS hose, with a straight hose joint and funnel bleeding to make hydraulic servicing cleaner and simpler. It is compatible with the listed MT400-series calipers and uses a clamp-band shifter mount.
A strong choice for entry-level mountain-bike riders upgrading to more controlled downhill braking, especially those who value accessible lever reach and easy servicing.
Four-piston caliper
More piston area supports stronger, more controlled braking for trail riding and descents.
Consistent braking control
The caliper design helps stabilise hydraulic pressure, reduce rotor wobble and minimise noise.
Two-finger aluminium lever
A compact lever shape provides practical control, with an anodised aluminium construction.
Accessible lever reach
The 75 mm minimum reach suits riders with smaller hands; adjustment is performed with a tool.
Resin or metal pads
Choose the pad compound that best matches your preferred braking feel and riding conditions.
Funnel bleeding
The hydraulic system is designed for cleaner, simpler bleeding and servicing.
MT400-series compatibility
The BL-MT401 lever is listed as compatible with BR-MT400, BR-MT410 and BR-MT420 calipers.