Honda Valkyrie GL1500 motorcycle — a GLH build
Bob's Bee#1The First GLH Ever Built

Attic Rat Performance Works · Tulsa, Oklahoma

GLH
REGISTRY

The Official Record of Honda Valkyrie GLH Performance Builds.
1997 – 2003.

0Bikes Documented
0Verified

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Classification System

GLH LEVELS

Original Six

The first six Valkyries Bob built with the GLH engine package. The rarest and most historically significant bikes in the registry — the builds that started it all.

  • First 6 builds (1997)
  • Unique early-spec package
  • Direct Bob Smith builds
  • VIN confirmed
Verified

VIN confirmed against original Attic Rat Performance Works invoice records. Ownership chain documented. GLH engine package installation authenticated.

  • VIN on file
  • Invoice matched
  • Ownership chain documented
  • Photo evidence
Reported

Submitted by an owner or enthusiast. Awaiting VIN confirmation and cross-reference against original invoice records. Pending verification review.

  • Submitted by owner
  • Awaiting VIN match
  • Invoice cross-check pending
  • Under review
Attic Rat Performance Works — the original GLH logo

The Origin

BOB SMITH &
ATTIC RAT
PERFORMANCE WORKS

"Go Like Hell wasn't just a name. It was a promise — that your Valkyrie would perform like nothing else on the road."

From his shop in Tulsa, Oklahoma, Bob Smith engineered and installed the GLH performance package on Honda Valkyrie motorcycles from 1997 to 2003. Between 100 and 120 bikes were ever modified — making every GLH Valkyrie a rare piece of American motorcycle history.

The original six builds were slightly different from later production packages, representing the earliest evolution of the GLH specification. This registry exists to document, verify, and preserve the complete history of every bike Bob touched.

Read the Full History
Attic Rat Performance Works

Is Your Valkyrie a GLH Bike?

CLAIM YOUR
PLACE IN
HISTORY

If you own or know of a Honda Valkyrie with a GLH engine package, submit it for inclusion in the registry. We'll cross-reference against original Attic Rat Performance Works invoice records and work toward full verification.

Cross-referenced against original invoices
VIN confirmation process
Ownership chain documentation
Submit for Verification

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GLH Registry — Attic Rat Performance Works

The official historical record of Honda Valkyrie motorcycles modified with the GLH performance package by Attic Rat Performance Works.

Registry

Attic Rat Performance Works

Tulsa, Oklahoma

Builds: 1997 – 2003

© 2026 GLH Registry. All rights reserved. A historical preservation project.

Go Like Hell