The Giustaforza 1-15 Pro Evo takes everything from the 1-15 Pro and calibrates it in both directions, so it clicks at the set torque on left-hand threads too. The Deluxe version adds a bicycle-specific bit set in a roll-up wrap pack, and the body wears an oil slick finish.

Highlights

• Calibrated for clockwise and anticlockwise tightening
• 1-15Nm range with a 0.1Nm micrometric scale
• Compact reversible ratchet head, 1/4" square with 1/4" square-to-hex adapter
• Under 210g, 173mm long, hard-anodised aluminium body
• Meets DIN ISO 6789 and ASME B107.300-2010
• Deluxe: S2 steel bicycle bit set in a wrap pack

Both directions, one wrench

Pull the self-locking dial, rotate to your value and release to lock it. Turn the black crown around the head button to reverse the ratchet, and the wrench still gives a loud click and 3 degrees of free movement at the set torque, whichever way the thread runs.

Light where it counts

At under 210g it weighs less than half of many wrenches in this range, so the feedback at low torque values is clean and easy to read. No batteries, no electronics, no plastic parts.

Calibration

Every Giustaforza is individually checked and numbered. The +/- 4% tolerance is guaranteed for 5,000 cycles (5,000 clicks), after which Effetto Mariposa recommends recalibration; its calibration service extends the tolerance for another 5,000 cycles and returns the wrench with a calibration certificate. Always store the wrench at its minimum setting.

Compatibility & fit

For bicycle bolts from 1 to 15Nm, including carbon and other sensitive components, with calibrated tightening in both directions. Always follow the torque value specified by the component maker.