Shimano BR-MT420 Rear Disc Brake Acera BL-MT101 Left Lever 4 Piston

Regular price $189.99

Shimano BR-MT420 Rear Disc Brake Kit Acera With BL-MT401 Brake Lever Left Hand

 

BR-MT420

The Shimano BR-MT420 caliper features consistent braking performance and reliable stopping power in all conditions. The 4-piston caliper instills greater downhill confidence and control.

 

FEATURES

• 90% braking power vs. BR-MT520
• 20% increase braking power vs. current 2-piston BR-MT400
• 150% better wear-resistance vs. current 2-piston BR-MT400
• Brake pad: resin, metal

 

PRODUCT SPECIFICATIONS

Model No: BR-MT420
Series: Shimano
Colour: Black
Brake type: Hydraulic disc brake
Brake hose (kit): SM-BH90-SS
Hose joint: Straight
Brake hose color (kit)|1: Black
J-Kit spec (for OEM): Yes
Pad|Standard 1: D03S-RX Resin (w/o fin)
Pad|Standard 2: D02S-MX Metal (w/o fin)
Recommended brake lever: BL-MT401, BL-MT402-3A
Recommended disc brake rotor: SM-RT30 *, SM-RT54 *, SM-RT56 *, SM-RT64
Remarks: * Only compatible with resin pad
Compatible rotor size|140 mm (SS): Yes
Compatible rotor size|160 mm (S): Yes
Compatible rotor size|180 mm (M): Yes
Compatible rotor size|203 mm (L): Yes
Compatible rotor size|220 mm (LL): Yes
Oil: Shimano mineral
One Way Bleeding: Yes
Mount type: Post type
Piston: 4
Caliper fixing screw|Tool size: 5 mm
Caliper fixing screw|Anti loosen method: Snap ring
Pad mount: Split pin

 

BL-MT401

• Tailored for entry MTB riders
• Sleek design inherited from MTB racing components
• Anodised alloy 2-finger brake lever
• Braking power tuned for entry MTB riders
• Accessible lever reach designed for small hands
• Minimum reach 75 mm
• Long-lasting braking performance
• Easy, quick and clean installation
• Funnel bleeding
• Shimano Hydraulic Mineral Oil
• Balanced braking power

 

PRODUCT SPECIFICATIONS

Model No: BL-MT401
Series: Shimano
Colour: Black (black lever)
Brake type: Hydraulic disc brake
Lever size (finger): 2
Brake hose (kit): SM-BH59-JK-SS (for BR-MT400) SM-BH90-SS (for BR-MT420)
Hose joint: Straight
Brake hose color (kit)|1: Black
J-Kit spec (for OEM): Yes
Reach adjust|Tool: Yes
Compatible shift lever mount|Clamp band Yes
Recommended brake caliper: BR-MT400 BR-MT420
Oil: Shimano mineral
Funnel bleeding: Yes

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Description

Shimano BR-MT420 Rear Disc Brake Kit Acera With BL-MT401 Brake Lever Left Hand

 

BR-MT420

The Shimano BR-MT420 caliper features consistent braking performance and reliable stopping power in all conditions. The 4-piston caliper instills greater downhill confidence and control.

 

FEATURES

• 90% braking power vs. BR-MT520
• 20% increase braking power vs. current 2-piston BR-MT400
• 150% better wear-resistance vs. current 2-piston BR-MT400
• Brake pad: resin, metal

 

PRODUCT SPECIFICATIONS

Model No: BR-MT420
Series: Shimano
Colour: Black
Brake type: Hydraulic disc brake
Brake hose (kit): SM-BH90-SS
Hose joint: Straight
Brake hose color (kit)|1: Black
J-Kit spec (for OEM): Yes
Pad|Standard 1: D03S-RX Resin (w/o fin)
Pad|Standard 2: D02S-MX Metal (w/o fin)
Recommended brake lever: BL-MT401, BL-MT402-3A
Recommended disc brake rotor: SM-RT30 *, SM-RT54 *, SM-RT56 *, SM-RT64
Remarks: * Only compatible with resin pad
Compatible rotor size|140 mm (SS): Yes
Compatible rotor size|160 mm (S): Yes
Compatible rotor size|180 mm (M): Yes
Compatible rotor size|203 mm (L): Yes
Compatible rotor size|220 mm (LL): Yes
Oil: Shimano mineral
One Way Bleeding: Yes
Mount type: Post type
Piston: 4
Caliper fixing screw|Tool size: 5 mm
Caliper fixing screw|Anti loosen method: Snap ring
Pad mount: Split pin

 

BL-MT401

• Tailored for entry MTB riders
• Sleek design inherited from MTB racing components
• Anodised alloy 2-finger brake lever
• Braking power tuned for entry MTB riders
• Accessible lever reach designed for small hands
• Minimum reach 75 mm
• Long-lasting braking performance
• Easy, quick and clean installation
• Funnel bleeding
• Shimano Hydraulic Mineral Oil
• Balanced braking power

 

PRODUCT SPECIFICATIONS

Model No: BL-MT401
Series: Shimano
Colour: Black (black lever)
Brake type: Hydraulic disc brake
Lever size (finger): 2
Brake hose (kit): SM-BH59-JK-SS (for BR-MT400) SM-BH90-SS (for BR-MT420)
Hose joint: Straight
Brake hose color (kit)|1: Black
J-Kit spec (for OEM): Yes
Reach adjust|Tool: Yes
Compatible shift lever mount|Clamp band Yes
Recommended brake caliper: BR-MT400 BR-MT420
Oil: Shimano mineral
Funnel bleeding: Yes

Delivery & Returns Policy

Delivery

  • Orders are packed and shipped within 2 business days.
  • Delivery times vary depending on location but are typically 2–5 business days Australia-wide.
  • Orders under $100: Flat rate of $20.
  • Orders over $100: Free delivery Australia-wide.
  • We ship Australia-wide using Fast Couriers and Australia Post.
  • Delivery is available to PO boxes, parcel lockers, and physical addresses.
  • Tracking details will be emailed once your order has shipped.
  • Express shipping is available for urgent orders.
  • You can also choose in-store pickup at Currumbin Cycles.
  • Specific delivery dates and times cannot be guaranteed.
  • If you’re not home, your courier may leave the package, attempt redelivery, or take it to a local depot.
  • You may nominate a delivery address different from your billing address at checkout.

Bicycle Assembly & Delivery

  • Assembly requirements vary by brand. Some bikes will arrive fully assembled, while others may require partial assembly (e.g., attaching handlebars or pedals).
  • Tools required depend on the bike. Please contact us if you need guidance.
  • Some brands provide instructions or assembly videos. If not, we’re happy to assist or recommend a local bike shop.
  • Fully assembled delivery may be available depending on your location — contact us before purchase if this is required.
  • Professional assembly at delivery is possible in select areas.
  • Warranty coverage may depend on the assembly method and the bike brand.

Delivery Issues

  • If tracking shows “delivered” but you haven’t received your order, please contact the courier directly.
  • If your order hasn’t arrived within the estimated timeframe, contact the courier first, then reach out to us if unresolved.
  • If an order is lost in transit, contact us and we’ll follow up.
  • If your order arrives damaged, please contact us immediately with photos or supporting evidence.
  • Most orders are insured during transit — we’ll handle claims with the courier on your behalf.
  • Missing items or parts will be resent at no cost.

Returns & Refunds

  • Returns accepted within 14 days of purchase if items are unused and in original packaging.
  • Refunds are processed within 48 hours of receiving the returned product.
  • Change of mind returns are accepted if the product is unused and within the 14-day window.
  • Sale items may be returned for refund at the purchase price.
  • Returns must be shipped at the customer’s expense (except when the error is ours).
  • Non-returnable items include: used, customer-damaged, or unhygienic products.
  • Incorrectly ordered parts may be returned if unused and in original packaging.
  • Accessories that have been opened but not used may be returned, provided packaging is intact.
  • Wrong parts sent by us will be returned at our cost.
  • Store credit is available if preferred.
  • Electrical items (e.g., e-bike batteries) may be returned if unopened, at customer’s expense.
  • If a bike doesn’t fit, you may return it at your expense for a size exchange (if stock is available).
  • Bikes that have been assembled and lightly test-ridden may be returned, but we reserve the right to refuse returns showing wear (tyre use, scratches, odometer readings, etc.).
  • Change-of-mind bike returns must be arranged before shipping where possible.
  • Damaged bikes will generally be replaced once reported and confirmed.
  • Return freight for bikes is not covered by Currumbin Cycles.
  • Custom or special-order bikes are non-returnable.

Warranty Claims

  • A return is when you change your mind or no longer want a product.
  • A warranty claim applies when a product is faulty or develops a defect covered by the manufacturer.
  • Contact us first — we’ll guide you through the correct steps.
  • You’ll need to provide proof of purchase and photos of the fault.
  • Processing times vary by brand; contact us for an estimate.
  • Replacements are not provided while claims are being processed.

Cancellations & Other Concerns

  • Orders may be cancelled before shipping. Once shipped, cancellations are not possible.
  • We do not offer refunds for courier delays, though we’ll always dispatch within 2 business days if the product is in stock.
  • Incorrect items (wrong size, colour, or product) will be exchanged or refunded.
  • If you receive an incomplete order, a partial refund or replacement may be arranged.
  • For large-item returns, we can help organise freight at your cost.

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