Billet Proof Designs Chrome 1" Single-Cable Throttle Assembly for 1974–1980 Harley FX/FLH — Clamp, Knurled Tension Adjuster

This compact assembly recreates the original external single-cable throttle hardware used on mid‑1970s Harleys while improving durability with chrome plating and a tough nylon sleeve. It’s made to mount on standard 1" handlebars and engages a 1/4-20 single external throttle cable, matching the dimensions and appearance of factory parts but with fresh finishes and precise fit. Whether you’re restoring a Wide Glide, Super Glide, Low Rider, Fat Bob, Sportster, Electra Glide, or Tour Glide from that era, this assembly is intended to speed installation and restore authentic throttle action.

Will this throttle assembly fit my 1974–1980 Harley?

The assembly is designed specifically for 1" handlebars used on 1974–1980 FX and Sportster models and 1975–1980 FLH and FLT models that use a single 1/4-20 external throttle cable. It reproduces the original clamp geometry so it mounts in the same location and orientation as OEM parts.

• Compatible with '74–'80 FX Wide Glide, Super Glide, Fat Bob, Low Rider, Sportster.
• Compatible with '75–'80 FLH Electra Glide and FLT Tour Glide single‑cable setups.
• Fits standard 1" diameter handlebars without modification.
• Requires a single external 1/4-20 throttle cable (not included).

How does the assembly improve throttle feel and adjustment?

The housing includes a knurled throttle return tension screw that lets you fine-tune the spring tension and return action. The chrome-plated clamp holds the cable housing securely while the nylon sleeve provides smooth rotation and abrasion resistance for the grip end.

• Knurled tension screw for easy, tool-free adjustments.
• Chrome clamp prevents corrosion and mirrors original styling.
• Nylon sleeve reduces wear on grips and ensures smooth throttle rotation.
• Compact 5" assembly length keeps cable routing tidy and OEM-correct.

What comes in the package and what are the exact dimensions?

The kit ships as a complete single-cable throttle assembly: chrome plated cable housing clamp, knurled tension screw, and a durable nylon throttle sleeve. Dimensions are provided so you can verify fitment during a restoration or parts swap.

• Complete assembly: 5" long x 2-5/8" wide (including tension screw).
• Cable housing body: 2" x 1-7/8" x 3/4" for accurate clearance planning.
• Nylon throttle sleeve: 4-1/2" long x 1-1/8" diameter for correct grip fit.
• Finish: bright chrome plating for authentic period look.

Are replacement or alternate kits available for other years?

Billet Proof Designs provides matched parts for different throttle cable layouts; if your bike uses dual external cables or later-generation throttles, there are specific kits available. This single-cable assembly is distinct from the '81–'95 dual-cable kits, so choose the kit that matches your cable configuration.

• Single-cable assembly is for pre‑1981 single external cable models only.
• Separate dual-cable kits exist for '81–'95 Big Twins and Sportsters.
• If you need new grips, Billet Proof Designs also offers compatible grip options.
• Contact product listings or customer support for cross-reference help.

Who is this for: This chrome 1" single cable throttle assembly is intended for motorcycle restorers, custom builders, and maintenance-minded riders working on mid‑1970s Harley-Davidson FX, FLH, FLT and Sportster models that originally used a single 1/4-20 external throttle cable. It suits anyone seeking an authentic-looking, chrome-finished replacement that preserves original routing and provides simple tension adjustment without machining or handlebar modification.