SKU: 22297573268

Runwell GENEX45 Hex Wrench

Sale price$35.10 Regular price$39.00
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Runwell GENEX45 Hex Wrench"Fully specialized for track bikes" and features a 4mm x 5mm hex wrench. Experience the new torque transmission feel of the X handle and the unique workability that is different from standard hex wrench designs. The GENEX45 is an X handled hex wrench equipped with 4mm and 5mm hex wrenches for tightening and loosening hex socket bolts. The GENEX45 is designed for setting up stems, handlebars, seat posts, and chainrings. The hex socket on the handle

"Fully specialized for track bikes" and features a 4mm x 5mm hex wrench. Experience the new torque transmission feel of the X handle and the unique workability that is different from standard hex wrench designs.

The GENEX45 is an X-handled hex wrench equipped with 4mm and 5mm hex wrenches for tightening and loosening hex socket bolts. The GENEX45 is designed for setting up stems, handlebars, seat posts, and chainrings. The hex socket on the handle side is compatible with 5mm chainring bolts, which require the quickest turning. The bit side has 4mm and 5mm hex sockets on both sides, and length is 70mm. The surface is plated with hard chrome, which is the hardest electroplating and has excellent abrasion resistance for the finest finish.

The flat type has a non-slip knurled tip, which supports quick turning with the long handle wrench (5mm width). The GENEX45's bit is designed to be longer, so you can apply final tightening torque to the chainring bolt while holding the bit side.
If the bit is worn out, you can replace it.

The GENEX45 is a hex wrench that will also be used by mechanics from leading countries at the 2024 Paris Olympics. It was developed with the idea in mind of a wrench that professional mechanics would want to keep in the pockets while working in the busy infields of track stadiums, where they are constantly replacing parts and dealing with unexpected issues.

About Replacing the Head Cap
Depending on the task, the protruding head cap may interfere with parts or the frame, making it difficult to use the tool with the top cap still attached. In this case, use a set screw instead of the silver head cap to hold the 4mm x 5mm bit. The set screw is included with your purchase.
※2.5mm hex wrench is required for the set screw.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22297573268

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4.7 ★★★★★
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CerisK
Phoenix, US
★★★★★ 4
Decent 3oz measurer
Color: Black, Color: Black
I like it, it works. However it is a bit heavy on the handle side. You think somebody like maestri house would get it correct. Could have used heavier metal on the measuring cup. Anyways I keep it it's nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
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Irishjude
Boise, US
★★★★★ 5
Expresso
Color: Silver
I like it. Each coffee perfectly measured
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Reviewed in the United States on January 25, 2026
W
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William Cummins
Boise, US
★★★★★ 5
Very useful
Color: Black
Very useful addition to my expresso brewing
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Reviewed in the United States on January 23, 2026
B
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Big Foot
San Leandro, US
★★★★★ 3
Needs to be a little larger for two shots
Color: Silver
Nice quality but overflows with two shots of espresso from my machine.
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Reviewed in the United States on January 13, 2026
M
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M. Altvater
Whiting, US
★★★★★ 5
Coffee!
Color: Silver
Holds coffee, looks nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025

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