A Mountain bike simply refers to any bike that is designed to be ridden off-road. There are three main types of mountain bike. The most basic is a rigid bike, which has no suspension. Hard tail mountain bikes are called hardtail because they have a suspension fork at the front. Full suspension bikes have both front suspension forks and a rear shock absorber, and are the most capable across rough terrain.
Mountain bike frames are typically made from steel, aluminium or carbon fibre, and all will have robust wheels with chunky tyres. The best mountain bike will be one that suits the kind of riding you want to do, at the right price. You can get advice on these at any Evans Cycles store.
A hardtail mountain bike uses a suspension fork at the front to provide cushioning from bumps and improve grip and handling. Because hardtails don't have any rear suspension, they're generally cheaper, simpler to maintain and lighter than more complicated full suspension bikes, meaning they're a wise choice for beginners.
Hardtail mountain bikes are a great way to get started riding off-road, but they're also great fun for any rider. Hardtails also have an advantage when it comes to pedalling as there is no loss of energy from the rear shock moving as you pedal, known as ‘pedal bob’. Suspension technology works hard to prevent this and some full-suspension bikes have a lock-out on the rear shock for this reason.
The lack of a shock absorber at the rear means more shocks are transmitted from the ground to you as you ride. That can be tiring and it also increases the chance you’ll puncture your tyre. A hardtail bike will also struggle to maintain grip on rough terrain because the rear wheel will skip over the ground rather than tracking it, giving you less control compared to a bike with a rear shock.
Mountain bike wheel size has undergone something of a revolution in recent years. Originally most trail hardtails used 26in wheels, now however most brands have switched to either 27.5in (also known as 650b) or 29in wheels. 29in mountain bike wheels roll faster and have some advantages for speed but on very tight, technical terrain they do not handle as well as the 27.5in wheels. Some brands offer two or even three wheel sizes in some models so you can make your choice depending on your riding style.
So what's the best hardtail mountain bike for you? Our guide will help you pick the best style of hardtail for your needs.
Cross-country hardtails are about covering big distances, whether in a race or riding with your friends. Cross-Country bikes use forks with 80 to 120mm of travel, and are sometimes equipped with a fork lockout to make them even more efficient on smooth ground.
Most cross-country hardtails have light but affordable aluminium frames. More expensive models use carbon fibre to further reduce weight. Steel and more exotic materials such as titanium are also used, but are less common and tend to be more expensive.
Many cross-country hardtail mountain bikes, including the Specialized Stumpjumper Epic HT 29er use larger diameter 29in wheels, which roll over obstacles more easily than traditional 26in wheels. Pure cross-country bikes will have very stretched out riding positions and fast rolling but less grippy tyres and narrower tyres for efficiency.
Trail hardtail mountain bikes (otherwise known as 'hardcore' MTBs) are still capable of covering big distances but are more about being fun when the trail starts to point downhill. This makes them confidence inspiring and popular for new riders.
Trail hardtails like the Mondraker Vantage use suspension forks which have longer travel (usually 120 to 150mm) for more control over tough terrain. Compared to cross-country hard tails, they also have slightly heavier but tougher frames and equipment, which makes them capable on demanding, rocky trails. These bikes are also available in 27.5” (650b) and 29”.
Dirt jump bikes are designed to spend as much time in the air as they do on the ground. They have very low slung frames that offer masses of clearance for pulling tricks (also useful in the event of a crash), but that means they aren't good at riding big distances. They need to put up with a lot of rough and tumble and durable steel is a common frame material. Components are designed to be strong rather than light, using either 26in or 24in wheels and many have just one gear, meaning there's less to get broken.
A full suspension mountain bike lets you ride off-road trails with more comfort and control than you’d get from a hardtail mountain bike. By using a suspension fork at the front of the bike and a shock absorber at the rear, the wheels can move up and over bumps, lumps, roots and rocks, smoothing out the trail ahead.
Thanks to the additional stability and control from the suspension, full suspension mountain bikes can open the opportunity to explore more challenging terrain and obstacles.
Browse through the range of full suspension bikes and you’ll see that they use different frame materials, wheel sizes, and come in all sorts of shapes. There are also choices of air or coil sprung shock absorbers with varying amounts of suspension travel. So what's the best full suspension mountain bike for you? To work that out, it’s generally easiest to separate the sort of riding the bikes are designed for by the amount of travel they have on offer.
Lightweight, ‘cross-country’ full suspension mountain bikes will normally boast around 100mm (3.9in) of suspension travel and the lightest use carbon fibre frames. The idea is to take the sting out of bumps, increase traction at the rear wheel and add a bit of comfort to the ride without hampering pedalling efficiency or adding unnecessary excess weight
Cross-country mountain bikes are designed to be ridden uphill just as fast as they are downhill. Nowadays they tend to sport 29in wheels or the newer 27.5in (650b) wheel size.
Compared to shorter travel cross-country bikes, trail bikes like the Norco Sight will let you tackle rougher terrain with greater control and stability, and at higher speeds. Trail bikes use between 120 - 140mm (4.7 – 5.5in) of suspension travel. Ergo when you up the travel ever so slightly, and you enter into the world of the ‘trail’ full suspension mountain bike.
More travel tends to mean the overall weight of the bike creeps up, but the suspension's design ensures the effort you put through your pedals still gets efficiently transferred to the rear wheel. If you're looking for a light mountain bike, you'll want to bear this in mind when changing the travel. Trail full suspension mountain bikes are available with 26in, 27.5in (650b) and 29in wheels, with steel, aluminium and carbon fibre frames. For general riding at trail centres, these bikes are perfect
If you’re looking to take on more challenging terrain once in a while, all mountain/enduro bikes are the best full suspension mountain bikes for you. They’re slightly heavier than trail bikes, but are built to withstand more abuse and tackle more challenging terrain.
To help increase stability, they are slightly longer than trail and cross-country bikes, but will use wider bars and shorter stems for more reactive steering. All-mountain/Enduro full suspension bikes are generally available with 27.5in (650b) or 29in wheels, and most have frames constructed from aluminium or carbon fibre.
When it comes to downhill full suspension mountain bikes, weight is less of an issue because strength and durability take priority. Suspension travel jumps up to a whopping 200 - 220mm (7.9 - 8.7in), which lets the bike gobble up massive bumps and drops. Don’t be alarmed when you see the suspension fork at the front of the bike getting an extra fork crown to make it stiffer and stronger. Cheaper bikes get coil sprung shock absorbers, while more expensive ones use air sprung units to help reduce weight.
The Specialized Demo 8 is a downhill bike, and like all downhill bikes, it's designed to be ridden down the side of a mountain, launched off of jumps and screamed through turns. One thing they certainly won’t do is ride back up the mountain again! Wheel size is most frequently 27.5in (650b) wheels although some are still available as 26” bikes. If you enjoy riding with gravity on your side, taking on all the challenges the mountain can throw at you, a downhill bike will be your best ally.
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