I've had TRP's G-Spec Quadiem brake, the very same model that some fast guy named Aaron Gwin uses, on my own bike for many months now. Sure, I might have less skill than Gwin possesses in the tip of his braking finger, but I've been impressed with the four-piston G-Spec stoppers, and especially their modulation; it's like my brain is hardwired directly to the huge silver calipers. My overdue review of those brakes will happen in the next few weeks, but let's take a look at another brake from TRP that probably deserves more attention: the standard Quadiem.
What's so neat about the non-Gwin-ified Quadiem? Well, they're the same brake mechanically as the pricier G-Spec model, but they don't sport some of the finishing details that Gwin's anchors do. That means they should perform the same but for less money, which is a win in my books.
The G-Spec brake comes in at $199 USD per end (without rotor), but you can snag a normal Quadiem for $149 USD (also sans rotor), which saves you $100 USD on a pair of brakes. For the same brake. Minus some fancy pants finishing details. Gwin who?
Both the G-Spec and standard Quadiem models share the same finned, four-piston caliper that's home to ceramic/steel hybrid pistons, the same dimpled and drilled lever blade, as well as the same tool-free reach adjustment dial and split perch. But where TRP forges the G-Spec master cylinder/perch before putting it through a hand polishing process prior to anodizing, the normal Quadiem sees a cast top-end that doesn't receive the same special treatment and forgoes a few aesthetic touches.
The G-Spec model does see a small update for 2018, one that will make its way to the less expensive standard Quadiem as well. TRP used to employ a rather large bleed nipple that stuck up out of the caliper like, well, a large nipple. It worked fine when you needed to do a bleed, but the updated caliper ditches the nip in place of a recessed screw and now requires the same threaded bleed fitting that you use at the opposite end of the system.