absoluteblack HOLLOWcage v2 oversize derailleur pulley. Support us! Bikerumor may earn a small commission from affiliate links in this article. Learn More
absoluteBLACK’s unique, single-sided HOLLOWcage oversize derailleur pulley system is arguably the most unique such upgrade on the market, and now they’ve made it a bit more “normal” looking by switching to a standard carbon fiber injection molding process for the mono plate.
It’s a new type of carbon (for them) with a glossier finish that makes it look more like carbon fiber. They say it’s the same material and process used on the SRAM RED AXS derailleur’s stock cages, just with a different (and dimpled) shape. closeup details of new absoluteblack HOLLOWcage v2 oversize derailleur pulley. One of the benefits of this mono-plate design is that it can bend slightly, helping keep the lower jockey wheel pulley aimed more directly at the chainring, reducing lateral loading on the bearings.
Admittedly, the original looked a little like plastic, so this should help visually justify the €399 price.
They also now offer the lower lock-ring in colors besides the original’s flashy Rainbow/Oil Slick. Keep it a bit more subtle with black, titanium (color), gold, or red. absoluteblack HOLLOWcage v2 oversize derailleur pulley shown from different angles. If you’ve never seen aB’s OSPW before, there are quite a few things that make it unique…
Rather than a standard two-piece cage that sandwiches pulleys between them, the HOLLOWcage uses a single mono plate with a massively oversized lower pulley that spins the toothed jockey wheel […]
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