J-Boats J/70 Buyer's Guide
Shopping the used J/70 market means looking at a 22ft 9in one-design keelboat drawn by Alan Johnstone and built by CCF Composites for J/Boats Inc. With a 7ft 5in beam, 4ft 9in draft, and 1,750lb displacement, the boat was conceived as a ramp-launchable keelboat with a vertical lifting keel and a large transom-hung rudder. Its 226 ft² rig and self-draining 11-foot cockpit define a platform built for racing and daysailing rather than cruising, and that shapes every buying decision below.
Layouts on the Used Market
The J/70's layout is consistent across the class: a small cuddy forward and a spacious 11-foot self-draining cockpit aft. The cockpit is the boat's centerpiece, sized for a four-person crew with room to tack and jibe without bottleneck. Below the cuddy there is no cruising accommodation, so buyers should expect a trailerable racer with minimal shelter rather than a weekender. The vertical lifting keel and removable worm-gear crane mean any used boat should be assessed as a system that lives as much on a trailer as in the water.
Equipment and Common Upgrades
A spinnaker is commonly fitted, which is the standard downwind weapon for the class. Beyond that, an asymmetric spinnaker and a chartplotter appear as less frequent owner additions rather than standard gear. For a buyer, the meaningful equipment story is the carbon-fiber mast, boom, and retractable sprit from Southern Spars, the 2.5hp outboard, and the twelve-inch stanchions with padded Dyneema lifelines. The deck-stepped carbon rig and double-ended backstay purchase are the items that matter for tuning and resale, while the kelp cutter on the keel is a built-in detail worth confirming is intact.
What to Inspect
The keel is raised and lowered with a removable worm-gear crane on a vertical lifting keel, so check the keel trunk and lifting mechanism for wear or deformation from trailering. The large transom-hung rudder carries dynamic load when planing; inspect its gudgeons and the transom for any play or water intrusion. Also confirm the deck-stepped carbon-fiber mast step shows no cracking from rig compression, and that the retractable sprit operates smoothly.
Availability and Buyer's Takeaway
These boats are found in the United States, Germany, Switzerland, Saint Martin (French part), Spain, and Portugal. For a buyer, the takeaway is straightforward: verify the lifting keel and crane, check the transom-hung rudder and mast step, and confirm the carbon rig and spinnaker are present. A J/70 is a low-overhead one-design racer — choose a clean example with its Southern Spars rig intact and the self-draining cockpit uncompromised.
Price & volume trends
Monthly asking-price and listing-volume trends for the J-Boats J/70. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 13 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Mar 25 | 1 | $25,000 | — |
| Aug 25 | 2 | $48,450 | +93.8% |
| Oct 25 | 2 | $37,450 | -22.7% |
| Nov 25 | 4 | $47,250 | +26.2% |
| Dec 25 | 2 | $40,397 | -14.5% |
| Jan 26 | 3 | $45,457 | +12.5% |
| Feb 26 | 2 | $45,512 | +0.1% |
| Mar 26 | 5 | $60,000 | +31.8% |
| Apr 26 | 9 | $35,900 | -40.2% |
| May 26 | 2 | $42,146 | +17.4% |
| Jun 26 | 1 | $46,616 | +10.6% |
| Jul 26 | 1 | $34,450 | -26.1% |
| Aug 26 | 5 | $44,000 | +27.7% |
Where they're listed
J-Boats J/70 listings appear across 7 countries. United States has the most listings with 28 (77.8%), followed by Switzerland and Germany.
Country view
36 listings · 7 countries| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| United States | $43,500 | 28 | 6 | 77.8% |
| Switzerland | $52,479 | 2 | 0 | 5.6% |
| Germany | $41,377 | 2 | 0 | 5.6% |
| Australia | $57,451 | 1 | 0 | 2.8% |
| Spain | $45,457 | 1 | 0 | 2.8% |
| Italy | $44,291 | 1 | 0 | 2.8% |
| Portugal | $46,616 | 1 | 1 | 2.8% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
3 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| J-Boats J/70You are here | — | $ 44,146 | 36 | 7 |
| J-Boats J/80 | 26.25' | $ 30,000 | 26 | 7 |
| J Boats J/7 | 23.11' | $ 55,950 | 1 | 0 |