The refill for the Ultegra holder, and neither listing says so
SHIMANO R55C3 cartridge shoes, pair, 41 g (1.4 oz)
A pair of Shimano R55C3 cartridge brake shoes at 41 g (1.4 oz), the replaceable insert for a BR-6700 road caliper holder.
What you are getting
A pair of Shimano BR-6700-G R55C3 cartridge-type brake shoes, 41 g (1.4 oz) the pair, silver. $13.50.
It is the refill for the holder on this page
The Shimano BR-6700 Ultegra pad set reviewed on this page is an alloy holder with a replaceable insert. R55C3 is that insert, in the same BR-6700 family — which makes these two listings a pair rather than alternatives.
Holder set: $16.28, bought once. Cartridge shoes: $13.50, bought again every time the compound reaches its limit.
Neither listing points at the other. Establishing it took reading both, and it is the most useful thing on this page for anyone with a Shimano road caliper.
Forty-one grams, the lightest rim shoe in this group
R55C3 41 g (1.4 oz), M65T 48 g (1.7 oz), BR-CT91 60 g (2.1 oz) the pair. The other four publish nothing.
A cartridge insert is lighter than a one-piece block because the backing plate and the post are not part of it — they stay on the bike. That is the format, not a material advantage.
Three bullets, and none of them is a specification
“Consistent performance.” “Wide range of features.” “Durable construction.”
Nothing measurable in any of the three. No length, no width, no compound, no rim material, no caliper list, and no statement that this is the insert for a BR-6700 holder — which is the single fact a buyer needs.
And the description is in Spanish, with a manufacturer that is not Shimano
“Diseñadas para ofrecer un rendimiento consistente en la frenada, estas zapatas de freno tipo cartucho son compatibles con una amplia gama de bicicletas de carretera… Fabricadas por Velobil.”
Two things there. The description has not been translated for the American listing — the same fault as the BR-CT91 on this page, whose bullets are in German. And “fabricadas por Velobil” names a seller as the maker of a Shimano part, which is listing boilerplate rather than a fact about the product.
What the Spanish text does add is the contents: 2 unidades, a pair, in silver-colored metal.
R55C3 is a Shimano model code, and it is the thing to shop by
The useful consequence of the sparse listing: R55C3 is a published Shimano designation, and a search on that code finds the same insert from several sellers. The model code is more reliable than the title.
What is not published
No length, no width, no compound, no rim material, no caliper compatibility list, no wear-limit figure, and no statement of what it goes into. For a consumable, “wide range of features” is the least useful thing a listing could say.
Availability
Read on the day this page was built: $14 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-06. The live price is at the top of the page.
