Nordenmark Adventure's Light map holder offers an alternative for those wanting to give it a try. For MTB orienteering, adventure racing, or bike touring. This option is light and simple at 170 grams and with only one clamp to the centre of the handlebars.
Nordenmark offers two version of their popular map board for Ski orienteering: 'Champion' and 'Tight'. Both have a comfortable chest plate with 5 straps, and an adjustable aluminum arm with fully rotating map board. Fits 8 1/2'' x 11'' map. Note that the only difference between the two is the shape of the chest plate.
An update on an old classic. Nordenmark's Gold map board takes all that was best of both the Extreme and Classic models. Combines a light-weight frame with a quick-remove mount. At 400 grams, it's 100g lighter than the Extreme. It fits both regular and oversized handlebars. The map board holds maps up to 22.5cm by 30.5cm.