
Robert Axle Mountain Bike Resistance Trainer 12mm Thru Axle
$54.00 Original price was: $54.00.$14.85Current price is: $14.85.
Description
Robert Axle Project Thru-Axle Adapters
Seamlessly Convert Modern Frames for Indoor Training
Designed for cyclists who demand precision and durability, these thru-axle adapters bridge the gap between advanced bicycle frames and popular trainer systems like Tacx Neo 2T, Elite Reacto, Wahoo KICKR Core, Blackburn Rumble Roll, and Cyclops Fluid2. (Confirm compatibility using our width calculator tool below)
Key Performance Features
– Adjustable Width Design: Extends 15mm beyond frame on each side (total 30mm clearance) to accommodate road/gravel bikes with disc brake frames up to 148mm QR spacing
– Military-Grade Construction: Dual-hard anodized 7075-T6 aluminum components resist trainer-induced vibrations and sweat corrosion
– Tool-Free Installation: Includes reinforced quick-release lever compatible with standard 5mm hex keys (no proprietary tools required)
– Frame Protection System: Rounded end caps prevent trainer clamps from marring carbon fiber or alloy stays
Smart Compatibility Checklist
1️⃣ Measure trainer’s maximum clamp width (typically found in product specs)
2️⃣ Measure rear triangle width at dropout junction
3️⃣ Ensure difference between measurements ≥30mm
Download our compatibility worksheet [here]
Why Cyclists Choose This Adapter
✔️ Works with Tacx Flux/Alto systems requiring extended axle clearance
✔️ Preserves factory frame warranty by eliminating drilling requirements
✔️ Tested under 800+ lbs static load capacity for elite trainers
Competitive Advantage Matrix
Feature | Robert Axle Project | Standard Adapters | Competitor Brands |
---|---|---|---|
Adjustability Range | 130-148mm (±5mm tolerance) | Fixed size only | Limited to ±3mm |
Material Thickness | 8mm shaft body | 5mm stamped steel | 6mm generic alloy |
Surface Treatment | Triple anodized + DLC coating | Basic zinc plating | Single-stage anodize |
Warranty | Lifetime structural guarantee | 1-year limited warranty | 2-year prorated warranty |
Certified compatible with Shimano Ultegra/SRAM Red eTap framesets through independent lab testing
Built in Portland, Oregon using CNC-machined aerospace components – this isn’t just an adapter; it’s your frame’s armor against intensive trainer sessions.