{"id":341,"date":"2018-07-09T17:51:28","date_gmt":"2018-07-09T17:51:28","guid":{"rendered":"http:\/\/jenex.com\/?post_type=product&p=341"},"modified":"2024-03-29T12:37:52","modified_gmt":"2024-03-29T12:37:52","slug":"xlk940c","status":"publish","type":"product","link":"https:\/\/jenex.com\/product\/xlk940c\/","title":{"rendered":"XLC940C Composite Shaft Combi Ski"},"content":{"rendered":"

XLC940C\u00a0<\/strong><\/p>\n

The XLC940C is a very popular combi ski.\u00a0 The 33mm wide front ratchet wheel allows for better skating characteristics, while the 40mm wide classic rear wheel increases stability.<\/p>\n

The new XLC Elite roller skis are the best of everything we have learned from 30 years of building roller skis.<\/p>\n

The XLC are the lightest and the most snow like solid rubber wheel roller skis we have ever produced. The vibration damping of the new composite frame is exceptional, and, coupled with the shock absorbing wheel forks, the XLC makes skiing on pavement as similar to skiing on snow as possible. In addition to lower ski weight and the improved vibration damping, another advantage of the XLC is a lower center of gravity. The clearance from the pavement to the bottom of the shaft is the same, but with the strong construction we can make the shaft thinner, so the top of the shaft is lower, making the skis more stable. Safety is high priority at Jenex, so all XLC models are available with our patented brakes and speed reducers. For skiers weighing over 90 Kg (199 pounds), we offer the XLC in a Heavy Duty (HD) version that is about 25% stiffer.<\/p>\n

COMPOSITE FIBERS:<\/strong> Over the last twenty years we have tested most high strength synthetic fibers, including the many variants of Carbon, S glass, E glass and Aramid. All of these fibers have strengths and weaknesses. Aramid (KevlarTM<\/sup>) fibers have high tensile strength, dampen vibration and re extremely abrasion resistant, but are very weak in compression. Carbon is extremely stiff and strong in both tension and compression, but breaks very easily from impact, which is why so many Carbon ski poles break in sprint and mass start races. Carbon is a great material, but to prevent impact failure Carbon fiber shafts need a core with good energy absorbing properties and perform best when combined with more impact resistant fibers. And that\u2019s what we have with the XLC.<\/strong><\/p>\n

THE CORE:<\/strong> The core material is the foundation of a roller ski shaft and we have tried about every material available including a variety of metal cores. We have used organic cores like Baltic birch, Italian poplar, Balsa and many synthetic cellular cores. We now know from extensive experience that for roller skis, cellular cores are superior to metal cores. The XLC uses the best core we have tested to date. However, fabricating the cellular core is time consuming and expensive compared to an extruded core.<\/p>\n

BONDING:<\/strong> Composite structures need a very strong bond to both the fibers and the core. Bonding high strength fibers to a metal core can be more difficult than bonding to a porous cellular core. The metal must be aggressively etched for the fibers to bond properly. The cellular core we use has \u00a0thousands of microscopic pores per square centimeter, and therefore the epoxy penetrates and bonds extremely well the core. The epoxy that binds the fibers to themselves and to the core has a tensile strength about 3X greater than conventional epoxies and is the strongest commercially available.<\/p>\n

An outside supplier manufactures the precise core, but Jenex manufactures the critical composite structure that provides the strength and fatigue resistance. \u00a0All composite shafts are compression tested and every pair of shafts with the same serial number has equal deflection.<\/p>\n

The wheel forks have much better fenders than the original 800 and 900 series skis. \u00a0The combination fork and fenders are produced in Du Pont\u2019s\u2122 toughest thermoplastic, further strengthened with the addition of carbon fibers during the injection molding process. The non-metallic wheel forks reduce vibration, and for improved safety, all V2 Roller Skis are designed to accept the patented Jenex speed reducers and brakes.<\/p>\n

WEIGHT LIMIT 195lb (88kg)<\/strong><\/p>\n

Heavy Duty version available for skiers 196-220lb (89-100kg) $415<\/strong><\/em><\/p>\n

Specifications<\/strong>:<\/p>\n

Weight \/ pair: 1665 grams\/ 3lb 11oz<\/p>\n

Wheelbase: 708 mm. ( 27.9 \u201c)<\/p>\n

Wheel Dimensions:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Front 70mm diameter x 33mm wide (2.75 in\u00a0 x\u00a0 1.3 in)<\/p>\n

Rear: \u00a070mm diameter X 41mm wide (2.75 in x 1.6 in)<\/p>\n

Rubber composition: Highly abrasion resistant rubber with a durometer of 72 shore A.<\/p>\n

Bolts: 6x1x65mm grade 12-9 stainless steel bolts.<\/p>\n

Optional Speed Reducer: ATRQ900<\/a><\/p>\n

Optional Brake: BXLQ900<\/a><\/p>\n

Replacement wheels:\u00a0<\/a>\u00a0\u00a0 Front: \u00a0W83C ratchet wheel \u00a0 \u00a0 \u00a0 Rear- W30<\/p>\n

Our V2 ROLLER SKI GLOVES<\/a> offer excellent protection!<\/p>\n

Instructions<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

A low-profile, stable combi ski with our composite shaft for lower vibration.<\/p>\n

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