ATC70 Billet Inverted Fork Conversion Triple Tree – 45mm Pro Series (Ti Gray)

A true foundation piece for converting your ATC70 from a rigid front end to a modern inverted fork suspension setup. This triple tree assembly is precision CNC machined from 6061 aircraft-grade billet aluminum and features a premium titanium-look anodized finish, delivering the distinctive appearance of titanium with the lightweight strength and durability of billet aluminum.

Designed for 45mm inverted fork tubes top and bottom, this setup provides the strength, alignment, and clamping surface required to properly support a front suspension system on a platform that never had one from the factory.

The stem matches the stock ATC70 dimensions, allowing direct fitment to the frame while giving you the option to run original-style ball bearings or upgrade to a tapered bearing kit from our shop.

Everything about this assembly is built with precision in mind. Tight tolerances, clean machining, and zero compromise on finish or hardware.

Features

• 45mm upper and lower clamp bores for inverted fork conversions
• Precision CNC machined from 6061 aircraft-grade billet aluminum
• Premium titanium-look anodized finish for a distinctive appearance and corrosion resistance
• Stock-length stem for direct ATC70 frame compatibility
• Compatible with OEM-style ball bearings or tapered bearing upgrade kits
• Includes integrated 50mm handlebar clamps
• 83mm outer spacing for standard mini bike handlebar compatibility
• Works with 7/8" handlebars (XR50, CRF50, pit bike styles)
• CNC engraved Bart Moto Co. logo
• Torque specifications engraved directly on the clamp
• High-quality stainless steel Allen hardware throughout

Fitment

• Honda ATC70
• Designed for use with 45mm upper / 45mm lower inverted fork legs

Handlebar Compatibility

The included 50mm bar mounts are positioned at 83mm outer spacing, allowing use of standard mini bike handlebars including:

• XR50 / CRF50 style bars
• Aftermarket pit bike handlebars
• Renthal Play Bike High Handlebars and similar setups

Why This Setup

The stock ATC70 front end is rigid. This setup is what allows you to step into a true suspension front end.

Compared to anything close to stock, this triple tree delivers:

• Significantly improved front-end stability
• Reduced flex under load
• Proper support for modern inverted forks
• A more controlled and confidence-inspiring ride

Beyond performance, the titanium-look anodized finish gives the assembly a refined, custom appearance that stands out against traditional black or raw aluminum components. The finish complements both restored and fully custom ATC70 builds while providing a durable, corrosion-resistant surface.

If you are building a serious ATC70, this is where the front end starts.

Important Notes

• Fork legs, axle, and bearings sold separately or available in a complete conversion bundle
• Designed to integrate with our inverted fork system components
• Manufactured from billet aluminum with a titanium-look anodized finish; not constructed from titanium
• Always torque hardware to the specifications engraved on the clamp