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Sintered Metallic Disc Brake Pads, Shimano B01S Shape (generic)

Heavy e-bikes chew through resin pads, and riders who are tired of replacing them every few months often move to sintered metallic pads in the same shape. Aftermarket sintered pads in the Shimano B01S outline fit the same two-piston Shimano calipers and a number of other brands that copied the shape. They last much longer, shrug off heat on long descents, and work better in the wet. The trade-offs are more noise, a little less bite when cold, and faster rotor wear; your rotor must not be one of the resin-only models.

Heavy riders and cargo e-bikes that eat resin padsHilly or wet ridingAnyone who wants longer intervals between pad changes

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Key considerations

Do not use on rotors marked resin-only (some Shimano RT-series rotors are)
Expect some squeal, especially when wet or cold
Confirm the caliper uses the B01S shape before ordering
Bed in carefully; sintered pads take longer to reach full bite

Pros

Long life
Heat and wet resistance
Cheap sets of multiple pairs

Considerations

Noise
Faster rotor wear
Quality varies by seller

Compatibility notes

Calipers using the Shimano B01S/B03S/B05S pad shape; rotor must be rated for metallic pads

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Similar alternatives

All e-bike brake pads →

E-Bike Brake Pads

Shimano B05S Resin Disc Brake Pads

The Shimano B-series resin pad (B01S, B03S, and the current B05S) fits the two-piston hydraulic calipers found on a huge number of commuter and entry-level mountain bikes, including many e-bikes with Shimano MT200, MT400 and Deore M6000-class brakes. Resin pads are quiet and have strong initial bite, which suits stop-and-go riding, but they wear quickly on heavy bikes in hilly areas. They are cheap enough to keep a spare set on hand. If your bike has four-piston Shimano calipers, you need the D-series pad instead.

Best for: E-bikes with Shimano MT200/MT400/MT500 and similar two-piston hydraulic calipers · Commuters who value quiet brakes · Quick, cheap pad replacement

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Brake Rotors

203 mm 6-Bolt Disc Brake Rotor, Metallic-Pad Rated (generic)

Heavy, fast e-bikes benefit from big rotors, and 203 mm is the size many fat-tire and cargo bikes ship with or upgrade to. Generic stainless 203 mm 6-bolt rotors from brands like Tektro, Jagwire and a dozen unbranded sellers are widely sold; the useful ones are stamped from one piece of stainless, rated for metallic pads, and come with six bolts. Going up to 203 mm from a smaller rotor requires a caliper adapter and a frame or fork rated for it, so this is a like-for-like replacement for most buyers rather than an upgrade.

Best for: Replacing a warped 203 mm rotor on a fat-tire or cargo e-bike · Riders using sintered pads who need a metallic-rated rotor · Heavy riders who want maximum heat capacity

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