MEASURING SHOTGUN CHOKE. 1  True Cylinder 0-1 points. 2  Improved cylinder 3-6. 3  Quarter (American Improved) 8-12. 4  Half (American Modified) 17-23. 5  Three-quarters (Improved Modified) 25-30. 6  Full 35-40. 7  Super full 40+.
2015 Avanti Montari 7.3. This bike is one of our most popular. It's been designed so riders of all skill levels can enjoy an adventure in the great outdoors. With it's light alloy frame the Montari 7.3 is the perfect platform for trail riders wanting to hone their riding skills.his bike is one of our most popular. It's been designed so riders of all skill levels can enjoy an adventure in the great outdoors. With women-specific features and light alloy frame the Montari 7.1 is the perfect platform for trail riders wanting to hone their riding skills.
Wheel Size. Traditionally mountain bikes come with 26-inch rims. A new trend on the rise is using larger rims, called 29ers. These bikes use a larger 700c rim like that on road or hybrid bicycle. A 700c rim is about 700 mm or 27.5 inches, making the name 29er a bit confusing. The name 29er is actually a reference to the size of the rim including the tire, which is significantly thicker on a mountain bike compared to that of road or hybrid bike.