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Revolutionize Your Ride with Monticello GPT 3.0 Hubs

Experience unparalleled precision and innovation with the Monticello Straight Pull MTB QR Thru Axle Boost Hub, now upgraded with GPT 3.0 technology. Our renowned HB90 and HB91 hubs embody German engineering excellence, setting new standards for performance and reliability.


Product Details and Availability:

Monticello HB90 Straightpull Disc 6-hole for QR and free F: 15×100 mm R: 12×142 mm thru axle adaptor | Freehub Shimano HG

Monticello HB91 Boost Straightpull Disc Center Lock for F: 15×110 mm R: 12×148 mm thru axle | Freehub Shimano HG


German Precision Meets GPT 3.0 Innovation:

Monticello is proud to introduce GPT 3.0 technology to its hubs, enhancing your cycling experience with cutting-edge innovation. Our hubs, a testament to German craftsmanship, now incorporate GPT 3.0 for a ride like no other.


Advanced Bearing Technology:

Featuring 2 bearings for both the hub and freewheel body, our hubs are built to withstand diverse loads. The labyrinth sealing system, combined with stainless steel bearing rings and grinding seals, ensures enduring durability. Maintenance is a breeze with the Monticello plug-in system, designed for easy dismantling and servicing.


Adaptable Excellence:

Monticello HB90 hubs seamlessly adapt to various axle type standards, catering to different riding setups and preferences.

Technical Specifications:

Hub Body Material: Aluminum

Toothed Pulley Material: Steel

Freewheel Compatibility: Shimano MTB 9-, 10-, 11-speed | Sram 9-, 10-speed | Sunrace, Sugek, Sunshine, Zitto 9-, 10-, 11-, 12-speed

Freewheel Toothing: Every 15° (36x per revolution)

Axle Type: Thru Axle or Boost

Hole Count: 28 Holes

Brake Mount: IS 6-hole (Thru Axle / QR only) / Center Lock (Boost model only)

Color: Black with Monticello Logo

Weight: 357g / Pair (ACTUAL)

Elevate Your Ride with GPT 3.0:


Experience the future of cycling with Monticello’s GPT 3.0 hubs. Unleash innovation, reliability, and precision like never before.


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