
Rafael Estrada
11 years at bench
"A brake that feels vague at the lever is a brake that will fail under load. We don't ship vague."
Zero contamination callbacks in 847 bleeds — verified by fleet inspection logs.
Tool of Choice
Magura Bleed Kit MT-Pro + custom vacuum reservoir
Rafael runs a modified vacuum-bleed setup that draws mineral oil from the caliper upward — eliminating micro-bubbles that standard gravity bleeds leave behind. The lever feel difference is immediate.
Hydraulic brake service is where most shops lose time and credibility. A bleed that isn't clean enough shows up six weeks later as a soft lever mid-descent — and that call goes to the shop that sold the bike, not the one that did the service.
Rafael's protocol starts with a full system flush regardless of fluid age. Contaminated mineral oil is colourless until it's degraded past the point of usefulness. By the time it looks wrong, it's already wrong. Every Wrench bleed uses fresh fluid from sealed bottles opened that day.
Caliper alignment is checked with a feeler gauge against the rotor. Pad contamination — even from a fingerprint on the rotor during a wheel swap — is tested with a controlled braking run before sign-off. The documentation sheet that leaves with every bike includes the specific fluid batch number and the measured lever engagement point in millimetres.

