The most common mountain bike frame designs and all you need to know about them
Mountain Bikes come in every imaginable shape and size. I’ve classified them into several main categories based on frame design so that you can get a clear picture of what’s out there. Before you decide on a bike, be sure to study each category to see which best fits you, your riding style, and your budget.
Hardtails
Hardtails- are the classic mountain bike frame design. The versatile and strong frames that this sport grew up on. They received the name “hardtail” because they lack any rear suspension. These come in a range of materials such as, cromoly, aluminum, titanium, and carbon fiber. A lot of cross crountry racers still swear by the hardtail frame. This is becuase all pedaling energy goes directly to the rear wheel instead of some being lost due to suspension. There is a hardtail made for every venue of riding, from light weight cross country to beefy dirt jumping. You can’t go wrong with a hardtail. If you are new to mountain biking, then you should start out on one of these. Everyone should have one in their lineup. Hardtails generally start in the $300 dollar price range for an entry level bike.
Full Suspension
Full Suspension – also called Dual Suspension or just Dually for short. They have shock absorbing capabilities for the rear wheel as well as the front. Frames come in every imaginable shape and size, but most are made from high quality aluminum alloys. There are a few tried and tested suspension designs out there. They make up four basic categories.
- Four Bar Linkage
- Single Pivot
- Rocker Arm
- Swing Arm
Note – Some of the suspension designs out there are very complex and involve tons of bearings and linkages. If you ride in dry conditions most of the time this really isn’t too much of a problem. But, if you ride in muddy or wet areas on a regular basis, beware that all those linkages and pivot points mean probable maintenance headaches. This is something to consider before purchasing.
Softail
Softails – get their name from their short travel rear suspension design. They rely on a single shock absorber. It is usually located on the seatstay just behind the seat. This shock absorber is generally just a simple air shock or an elastomer “bumper”. The softail suspension utilizes flame flex as part of the design, so travel is limited to around an inch. Because of the flex, frames are commonly made out of cromoly steel. Softails were conceived as a way to have bump softening without the weight associated with full suspension cross country bikes. Their strong points are being lightweight and low maintenance. However, keep in mind that with the amazing advances in MTB suspension, these softails are starting to fade away.
Posted by admin on August 11th, 2011 :: Filed under Uncategorized
