The Big Seven is built with a reliable Merida 6061 series double butted and technoformed aluminium frame which is tough and lightweight for a swift and durable ride. TFS - TECHNO FORMING SYSTEM. Simply mentioning that Merida’s Big Seven Team is a recently developed mountain bike, part of the 27.5 inch hardtail range, would be somewhat of an understatement. The Merida Big Seven Limited is a classic XC focused hardtail mountain bike that features a high-quality alloy frame and rolls on 27.5” wheels for the ideal balance between rapid rolling and nimble handling. We use a minimum of 6061 aluminium. The pay back is that it’s possible to make lighter and more advanced frames. The Merida Big Seven is a Hardtail Mountain Bike designed for cross country and trail riders with all the benefits of the new 27.5 inch (650B) wheel size. The Merida Big Seven 40D is built on an aggressive and strong alloy frame. The Big Seven is ideal for cross-country and trail centre riding and features a Shimano ‘one by’ drivetrain for trouble free shifting with all the gears you need. This helps the rider be safe on the jumps on trails. This helps the bicycle climb and roll over harsh trails without the frame taking a hit at the bottom bracket area. The Merida Big Seven 10 MD is an entry-level hardtail bike that is built for enjoying trails and exploring the great outdoors. The Merida Big Seven 20 MD is built on an aggressive and strong alloy frame. Highlights: RACELITE 61 ALUMINIUM. We use an additional heat treatment and double-butted wall thicknesses to produce light and stiff frames. The Merida Big Seven 40 is available with 0% APR finance; Merida Big Seven Review. The largest choice of bikes can be found in the Big.Nine range. In the most part the range mirrors the Big.Seven bikes but it also includes a Team edition bike at the very top of the range. Technoforming is … Merida Big.Nine. Rolling on bigger 29″ wheels, the Big.Nine is the fastest of Merida’s hardtail ranges. This frame has a slanting top tube which makes the stand over height bigger than most standard hardtail MTB’s. 27.5 inch Wheels have quickly gained popularity amongst mountain bikers as they offer an optimal balance of reduced rolling resistance that characterises 29ers and the agility and handling of smaller 26 incher wheels. This frame has a slanting top tube which makes the stand over height much more than standard hardtail MTB’s.