Franz and Grubb Engine
Vintage Triumph motorcycle engine specialist, valves and spring kits, cylinder boring, pistons, cylinder head rebuilding, for 500, 650, and 750 twins from 1946-1979. Amazing quality work using the best parts and practices from an experienced engine builder. Located in North Hollywood, California.
North Hollywood, US · prices in USD · ships to 235 countries. Catalogue read from fagengine.com's own public product feed on 2026-08-08. Every figure below is an observation from that feed, not an estimate.
Sales estimate
Derived from stock levels falling between polls, over 3 observed days. Intervals where stock rose, or where a variant sat at the store's inventory ceiling, are discarded rather than counted as zero sales.
| Date | Units sold | Est. revenue | Method | Catalogue read | Discarded |
|---|---|---|---|---|---|
| 2026-09-07 | 0 | not measurable | index only | — | 00 |
| 2026-08-31 | 0 | not measurable | index only | — | 00 |
| 2026-08-14 | 0 | not measurable | index only | — | 00 |
An estimate, and the page shows what it rests on: which method produced each day, how much of the catalogue could be read, and how many intervals were thrown away. A day marked not measurable is not a day without sales — it is a day we could not defend a number for.
Store facts
Brands carried
Matched on the store's own brand field, so these are exact — not guessed from product names.
Products
Data collected from fagengine.com's public product feed. Not affiliated with or endorsed by this store. Request removal.