Spars & Rigging

Use the white tabs on the left hand side to access the different categories of Spars and Rigging that we supply.

Please note that the Mast and Boom Spars section lists the basic spar materials we supply. For rig kits please go to Products by Class and choose the relevant class section.

Carbon mast spars - carbon tubes of 8 mm diameter and over are available in high modulus carbon and are approximately 60% stiffer than tubes made from high strength carbon. We also stock less stiff (high strength) carbon tubes in 8 and 10 mm diameter. Our carbon tubes less than 8 mm diameter are all made from high strength carbon.

Alloy mast spars - All aluminium alloys have the same stiffness. The only way to get a stiffer alloy mast is to increase the diameter and/or wall thickness. The GROOVY mast tubes we stock have a medium temper that enables them to be pre-bent easily to the shape required without great danger of breakage. The 11 mm diameter round mast tube we stock is a very hard alloy (7075 grade T6 temper) and is difficult to add pre-bend to. To ease this process we have a mast bending tool. There is a thorough explanation of this subject in the FAQs section.

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