The J/70 guide helps owners decide what may need replacing, what can be priced indicatively and what still needs measuring. The furler section is useful for checking whether the existing forestay system should be retained, replaced or considered alongside a wider furling upgrade. Two boats of the same model can nevertheless differ after years of owner upgrades, previous re-rigging or changes to the mast and headsail-furling system. If the old rigging is available, copying the original stay set after checking its condition and dimensions is usually more dependable than manufacturing solely from a model-based schedule.
Yacht and Rig Details
| Production | United States, 1977–1987 |
|---|---|
| LOA | 6.99 m |
| Beam | 2.25 m |
| Displacement | 794 kg |
| Rig | Sloop |
| Mast stepping | Deck stepped |
| Spreaders | 1 |
J/Boats J/70 standing rigging
| Indicative forestay/backstay/shroud diameter | 4 mm |
|---|---|
| Rigging type | 1x19 stainless steel wire |
| Indicative standing rigging cost | £1,085 – £1,310 inc VAT |
Need replacement standing rigging for your J/Boats J/70? Choose the rigging options you want included, then use the Request Estimate button to send us your yacht details and selected items. You can also explore our yacht standing rigging replacement options, or see our standing rigging replacement cost guide.
Furler and kicker recommendations
| Genoa furler | Furlex 50S — 6.15 m |
|---|---|
| Rodkicker | Rigid boom vang (factory, non-Seldén) |
Mast and boom recommendations
| Suggested mast section | C145 |
|---|---|
| Indicative mast height | 7.97 m |
| Suggested boom section | E238 |
| Indicative boom foot length | 2.88 m |
| Reefing | Slab reefing (2 reef lines) |
J/Boats J/70 running rigging
| Line | Diameter | Length | Suggested rope |
|---|---|---|---|
| Main halyard | 8 mm | 19.3 m | Marlow Ocean Braid |
| Genoa halyard | 8 mm | 20.1 m | Marlow Ocean Braid |
| Spinnaker halyard | 8 mm | 21.9 m | Marlow Ocean Braid |
| Genoa sheets | 10 mm | 11.2 m per sheet | Marlow Ocean Braid |
| Main sheet | 10 mm | 14.5 m | Marlow Ocean Braid |
Build your J/Boats J/70 Running Rigging Package →
Need replacement running rigging for your J/Boats J/70? Choose the running rigging you want included, then use the Request Estimate button to include it in your enquiry. You can also explore our yacht and dinghy running rigging replacement options, or read our complete guide to running rigging.
These specifications and prices are indicative only and should be verified against the rig and existing equipment on the individual yacht.