Billet Proof Designs 1" Dual-Cable Throttle Assembly for 1981-1995 Harley Big Twins & Sportsters — Chrome, Nylon Sleeve, Adjustabl

This Billet Proof Designs throttle assembly is built to replace worn factory controls or upgrade motorcycles fitted with aftermarket carburetors that need dual external cables. Engineered for 1" handlebars on ’81–’95 Big Twins and Sportsters, the unit recreates the original appearance with a chromed housing clamp while adding practical features like a knurled tension adjuster and a resilient nylon sleeve for smooth, reliable operation.

Will this throttle assembly fit my 1981–1995 Harley model?

Yes — the assembly is specifically dimensioned for motorcycles equipped with 1" bars and dual external throttle cables from 1981 through 1995. It is also compatible with bikes that have aftermarket carburetors requiring a dual-cable setup.

• Designed for 1" handlebars on ’81–’95 Big Twins and Sportsters.
• Works with aftermarket carburetors that use two external cables.
• If your bike uses a single external cable, check Billet Proof kits for earlier FX, FLH, FLT and some Sportster years.

How does the tension adjustment and nylon sleeve improve performance?

The knurled throttle return tension screw lets you fine-tune spring resistance so the grip returns predictably and feels right for your riding style. The supplied nylon throttle sleeve reduces cable wear and friction, promoting smoother throttle action and longer cable life.

• Knurled screw allows on-the-fly tension tweaks without special tools.
• Nylon sleeve minimizes binding and cable abrasion.
• Chrome-clad housing clamp keeps routing secure and preserves classic looks.

What are the physical dimensions and finish of the assembly?

The complete throttle assembly measures roughly 5-1/4" by 2" by 2-5/8" including the tension screw, with the cable housing and nylon sleeve sized for direct fitment on compatible bikes. It ships with a bright chrome finish to match factory trim and aftermarket chrome accessories.

• Complete assembly: about 5-1/4" x 2" x 2-5/8" (including tension screw).
• Cable housing size: approximately 2" x 1-7/8" x 3/4".
• Nylon sleeve: roughly 4-3/4" x 1-1/8" and ready to install.

How simple is installation and what comes in the box?

Installation is straightforward for riders familiar with throttle cable routing and basic handlebar work; the assembly includes the chrome housing clamp, the adjustable tension screw, and a new nylon throttle sleeve. If you’re replacing a like-for-like dual-cable unit, the swap is mostly bolt-on with cable end adjustments required for final setup.

• Includes chrome plated cable housing clamp and new nylon throttle sleeve.
• Knurled tension screw fitted to the housing for easy adjustment.
• Basic hand tools needed for removal, cable routing, and tensioning.

Who this is for: Riders restoring or maintaining 1981–1995 Harley Big Twins and Sportsters who need a faithful-looking, functional dual-cable throttle replacement — especially shops and enthusiasts fitting aftermarket carbs that require two external cables. Choose this Billet Proof assembly if you want original-style chrome appearance combined with adjustable return tension and a durable nylon sleeve for smoother throttle feel and dependable cable lifetime.