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Elite Boost 148x12mm Knurled Thru-Axle Adapter Spacer

Seamless Compatibility for Elite Indoor Trainers

The Elite Boost 148x12mm Knurled Thru-Axle Adapter Spacer is the ultimate solution for riders looking to integrate Boost hub-equipped mountain bikes with Elite indoor trainers. Designed with precision, durability, and ease of use in mind, this essential adapter ensures your MTB fits snugly and securely on direct-drive or interactive trainers from Elite—giving you a stable and optimized indoor training setup.


🔧 Tailored for Boost MTB Standards

Mountain bikes equipped with Boost rear hub spacing (148mm) require special alignment to fit on traditional trainers. This adapter fills that gap—literally—by allowing for a precise 148x12mm axle fit. It bridges the compatibility gap between your MTB and trainer, so you can ride hard indoors with confidence.

  • Hub standard supported: 148x12mm Boost

  • Adapter type: Precision-machined, knurled thru-axle spacer


⚙️ Precision Engineering with Knurled Grip

The adapter features a knurled outer surface, which enhances grip and makes installation secure and tool-friendly. Manufactured from durable, high-grade alloy, it maintains structural integrity under pressure and provides lasting performance, ride after ride.

  • High-tolerance machining ensures perfect fit

  • Knurled design resists slippage and improves torque hold

  • Designed for repeated use with minimal wear


🛠️ Plug-and-Play Simplicity

No complicated setup. No tools required. Just slide the adapter in place and you’re ready to ride. Whether you're switching bikes mid-season or setting up a permanent indoor station, this spacer offers hassle-free installation and removal without damaging your frame or trainer.


🎯 Perfect For:

  • Riders using Boost 148x12mm MTB frames

  • Users of Elite Suito, Direto XR, Justo, and Tuo indoor trainers

  • Athletes and home users seeking quick, reliable bike-to-trainer transitions

  • Cyclists training in the off-season or inclement weather


Key Features at a Glance:

  • 🛞 Supports 148x12mm Boost thru-axle MTB frames

  • 🔩 Knurled alloy construction for anti-slip installation and lasting durability

  • ⚙️ Compatible with leading Elite indoor trainers

  • 🧳 Compact, lightweight, and travel-friendly

  • 🔧 Tool-free, rider-friendly installation


📦 In the Box:

  • 1 x Knurled Thru-Axle Adapter Spacer

  • Setup instructions


🏁 Ride Indoors Without Limits

With the Elite Boost 148x12mm Adapter Spacer, your MTB seamlessly integrates into your indoor training setup. Experience uncompromised compatibility, maximum stability, and pro-level reliability—all in one small but essential component.