An MTB frameset generally consists of a frame, an MTB fork and a headset and possibly a shock absorber, and a swing arm, these components form the basic architecture of the mountain bike on which the transmission, peripherals and wheels will be assembled.
Choice of a MTB frameset :
The geometry of an MTB frameset will depend on the practice for which it is intended, an MTB frameset for freeride or downhill use will be compact while a model intended for XC cross country MTB or enduro MTB will be lighter. and longer. Depending on your size and the use of your mountain bike, there are three wheel diameters: 26, 27.5 and 29 inches, smaller wheels provide good responsiveness in single tracks, while larger models improve stability .
Manufacturers regularly change the fixing standards for bottom brackets, headsets, and MTB seat post diameter. Before purchasing an MTB frame kit, it is therefore necessary to know all the characteristics of the additional components to be acquired. In addition, certain peripherals or parts may require the use of specific tools.
The best performing materials can be used in the construction of a mountain bike frame. Carbon will be light and rigid but very fragile to direct impacts, moreover it is not recyclable, aluminum is heavier and more flexible but it will have better resistance in the event of a fall. Titanium can be a good compromise between weight, rigidity and strength, on the other hand it is high.
Components in addition to a MTB frameset :
You will find in our shop many parts, accessories and materials for the assembly of your MTB frame kit for all levels of practice among more than 350 brands available in stock.
We offer revised or new second-hand solutions at the best price for the renovation or technical improvement of your mountain bike whatever its year of manufacture. The current trend is to use a braking system with hydraulic disc brakes available on our site, we also offer cantilever or v-brakes for frame models that do not have the necessary fixings to hold the brake calipers.
The mechanical stresses on all the parts making up the frame of your mountain bike, some can give way under the forces they have to assume. The breakage of a swingarm for example can be very problematic as this component is specific to the model and brand of your MTB frame kit.
Wearing parts can generally be assembled with standard tools such as Allen keys or Allen keys, however, some components such as a bottom bracket may require specific tools available on our site at the best price.
For your safety and the best durability of your equipment, we recommend that you respect the values of the tightening torques of all screwed elements.
The assembly of parts and accessories require the use of specific cycling lubricants on which pollutants do not stick.
What are the biggest brands?
The manufacturers of mountain bikes and frames are Orbea, BMC, Specialized, Cannondale, Mustache, Lapierre, Look, Commençal, ...
Each manufacturer determines their own frame geometry depending on the use and the desired performance. Aluminum and carbon are used extensively.
<p>The mountain bike frame is the skeleton of your bike, it is on this basis that all the components of transmission, brake, steering and wheels will be assembled. Depending on the use, the <strong>MTB frame</strong> can be fitted with a rear shock absorber or not. For downhill use the travel (displacement of the rear wheel by connection to the frame) will be important while in cross country it will be low or nonexistent, in freeride the amount of travel will be intermediate.</p>
<h2>MTB frame choice :</h2>
<p>The choice of a <strong>MTB frame</strong> is made according to the intended use, in fact, a cross country or freeride <strong>MTB frame</strong> will be light, the position of the will be longer than on an Enduro or downhill (DH) <strong>MTB frame</strong> which will be shorter and reinforced at the joints and therefore heavier. The suspension travel and the diameter of the brake discs will also be larger on a DH model than on a version intended for cross country, the caster angle of the steering of an enduro or DH mountain bike will be more open for more stability. than on a freeride and cross country model. Ground clearance will be important on DH and enduro models.</p>
<p>The materials used in the manufacture of a mountain bike frame can be aluminum or carbon. Those who practice DH or Enduro mountain biking prefer the use of aluminum because it is shock resistant, while carbon which is lighter and more rigid but sensitive to direct impacts will be more used in cross country mountain biking or freeride mountain biking. However, hybrid assemblies, aluminum front triangle and carbon rear chainstays can combine the advantages of both materials.</p>
<h2>MTB frame compatibility :</h2>
<p>There are three standard wheel diameters: 26, 27.5 and 29 inches. The 26-inch diameter is the oldest and suitable for small cyclists (less than 1m70). The most used diameter is 27.5 inches because it is suitable for all users of average height (1m75), it is a good compromise between maneuverability and speed. An <strong>MTB frame</strong> designed for a 27.5 or 29 inch diameter will not work with 26 inch diameter wheels because the ground clearance and the gears will not match the dimensions of the <strong>MTB frame</strong>.</p>
<p>Peripheral components such as the fork, seat post and seat clamp must match the diameters for which the mountain bike frame was designed. The bottom bracket assembly can be screw-in or press fit type, the thread and diameter of the bottom bracket should match the bottom bracket with which the <strong>MTB frame</strong> will be assembled.</p>
<p>The disc brakes are fitted by means of an adapter which must be chosen according to the frame or fork attachment, the diameter of the discs and the type of brake caliper attachment.</p>
<p>For the drivetrain, the fixture of the rear derailleur is standard, on the other hand in the case of the use of a front derailleur, if it is fixed by a clamp it is necessary to determine the diameter of the fixing tube of the <strong>MTB frame</strong> and the direction of cable traction (from the top of the frame or via a path under the bottom bracket).</p>
<p>The assembly of a mountain bike frame requires bicycle tools corresponding to the standards of the components chosen.</p>
<h2>The major brands of MTB frames:</h2>
<p>Many mountain bike brands have specialized in the design and manufacture of mountain bike frames, each one has its own specificity in terms of geometry and use.</p>
<p>Giant, Commençal or Intense offer models intended for the practice of DH or enduro; Orbea, BH, or Lapierre offer models intended for cross country or freeride; Giant or Btwin are general brands that offer all types of models.</p>
<h2>Accessories in addition to a MTB frame:</h2>
<p>We offer a large number of complementary components that can be assembled on an <strong>MTB frame</strong> such as wheels, derailleurs, chains, cranksets, saddles, seat posts, handlebars, stems, forks and shock absorbers. best price up to -70% of their replacement value. Over 350 brands are available in limited stocks.</p>
<p>The <strong>MTB fork</strong> is a key component for steering, comfort and handling of your bike, it can be rigid or suspension.</p>
<h2>Technologies of an MTB fork:</h2>
<p><br /><br />Two types of forks exist:<br /><br /></p>
<li>rigid models in steel, aluminum, titanium or carbon, they are designed for use on a ride, road cyclist or cross country</li>
<li>the suspended versions intended to improve comfort only are generally made up of elastomer pads and springs. The models intended for the sporting excursions are adjustable in compression, <a href="https://www.sl-sport-equipments.com/gb/content/20-uci-world-championship-2020">the top-of-the-range models and competition</a> have an adjustment of the compression, the rebound and the locking is possible for a use on road or on flat paths. In order to gain weight and performance, some models are fitted with an oleopneumatic system: air chamber for compression and oil bath for expansion, the settings of which are completely customizable depending on the terrain and the weight of the pilot.</li>
<h2>Compatibility and choice of an MTB fork:</h2>
<p><br /><br />The choice of an <strong>MTB fork</strong> can be made according to the following criteria:<br /><br /></p>
<ul style="list-style-type: circle;">
<li>braking system: by disc brake or by V-brake or cantilever pivots</li>
<li>wheel diameter 26, 27.5 or 29 inches</li>
<li>tube diameter 1 inch, 1 "1/8, 1" 1/4, constant or conical</li>
<li>headset type: headset or threaded</li>
<li>technology according to the planned use</li>
<li>the need for a locking system</li>
<li>the brand, it may be wise to choose a recognized brand in mountain biking such as <a href="https://www.sram.com/en/rockshox">Rock Shox</a> or <a href="https://www.marzocchi.com/">Marzocchi</a> because the supply of spare parts will be easier</li>
<h2>Maintenance and replacement:</h2>
<p><br /><br /><br />A rigid fork like a telescopic fork requires regular cleaning with soapy water without pressure to remove pollutants such as mud, dried earth, dust and traces of grease.<br /><br />For the suspension versions we recommend that you check the condition of the bellows and seals, to check if oil leaks have appeared.</p>
<p>In order to not damage the fork tube, it is necessary to respect the tightening torques recommended by the manufacturers of the stem, headset and to limit the movements in the steering bushing. <a href="https://www.sl-sport-equipments.com/gb/content/21-cycle-2-work">For your safety, it is recommended to check the tightness of the brake caliper</a>.<br /><br />In the event of a leak, breakage of an item or a crack, repairing a <strong>MTB fork</strong> can be an expensive and complex operation that requires specific tools. If you do not have the necessary skills and tools, do not hesitate to call on a specialist for the overhaul and repair of your telescopic <strong>MTB fork</strong>.<br /><br />Changing or mounting a fork on an MTB is a simple operation that does not require specific tools.</p>
<p><br /><br /><br />We offer a large number of complementary components with an <strong>MTB fork</strong> such as headset, <a href="https://www.sl-sport-equipments.com/gb/content/19-how-to-choose-a-bike-stem">stems</a>, wheels and brakes.<br /><br />More than 350 brands of parts and accessories in new cleared or second hand condition are offered at the best price.<br /><br />Here are some examples of <strong>MTB fork</strong> brands: Rock Shox, Marzocchi, <a href="https://hayesbicycle.com/collections/forks">Manitou</a>, ...</p>
<p>The <strong>MTB headset</strong> rotates the fork tube in the frame's tube, it's a key part of steering. It is positioned between the fork, the frame and the stem.</p>
<h2>Constitution of a MTB headset:</h2>
<p><br /><br /><br />A <strong>MTB headset</strong> consists of a stopper assembled on the fork tube, cups assembled in the MTB frame, two bearings, an upper stopper, spacers, a stem cup and a star fixed in the fork tube.</p>
<p><br /><br /><br />The assembly of a <a href="https://www.sl-sport-equipments.com/gb/br-241-cane-creek">MTB headset</a> requires an Allen key set and an extractor for cups and a mounting tool in the case of a headset provided with external cups and a tube for the assembly of the lower stop. A workshop stand is also necessary in order to fix the frame during disassembly. For a headset screwed onto the fork tube, two flat keys will also be required.</p>
<h3><br /><br />1. MTB headset standard headset (stem attached to the fork tube)<br /><br /></h3>
<ul style="list-style-type: circle;">
<li>Loosen the fixing screws of the stem on the fork tube</li>
<li>Unscrew and remove <a href="https://www.sl-sport-equipments.com/gb/content/19-how-to-choose-a-bike-stem">the stem cover</a></li>
<li><a href="https://www.sl-sport-equipments.com/gb/content/21-cycle-2-work">Unassemble the stem</a></li>
<li>Remove the fork tube from the frame tube</li>
<li>Remove the bearings and spacers from the headset</li>
<li>remove the lower <strong>MTB headset</strong> stop from the fork tube</li>
<li>Remove the cups from the frame in the case of external cups</li>
<li>Put the lower stop of the <strong>MTB headset</strong> on the fork tube</li>
<li>Assemble the cups in the frame tube, using the tool provided for this purpose</li>
<li>Put and grease the lower bearing on the fork tube on the stopper</li>
<li>Assemble the fork in the frame tube</li>
<li>Put and grease the upper bearing in the upper cup</li>
<li>Assemble the upper stop of the <strong>MTB headset</strong></li>
<li>Assemble the spacers on the fork tube</li>
<li>Put the stem on the fork tube</li>
<li>Put and hand tighten the stem cover</li>
<li>Adjust the headset so that there is no more movement in the frame and the fork can turn freely</li>
<li>Put the stem in the wheel direction</li>
<li>Torque tighten the stem fixing screws on the fork tube</li>
<h3>2. MTB headset screwed onto the fork tube (stem fixed in the fork tube)</h3>
<p><br /><br /></p>
<ul style="list-style-type: circle;">
<li>Unscrew the fixing screw and remove the stem from the fork</li>
<li>Loosen and remove the headset nuts screwed onto the fork tube</li>
<li>Remove the fork and the lower bearing from the frame tube</li>
<li>Remove the stop from the for tube</li>
<li>Remove the upper bearing from its cup</li>
<li>Remove the cups from the frame tube using the tool provided for this purpose</li>
<li>Assemble the lower stop on the fork tube</li>
<li>Put and assemble the cups using the tool in the frame's tube</li>
<li>Place and grease the lower bearing on the fork stop</li>
<li>Assemble the fork tube in the frame tube</li>
<li>Position and grease the upper bearing in the upper cup of the <strong>MTB headset</strong></li>
<li>Hand tighten nuts</li>
<li>Adjust the headset to remove the movements and allow the fork tube to rotate freely in the frame tube</li>
<li>Place the stem pivot in the fork tube</li>
<li>Assemble the stem the wheel direction and torque tighten its fixing</li>
<p><br /><br /><br />There are many configurations and several diameters possible. When choosing an <strong>MTB headset</strong> it is necessary to determine</p>
<ul style="list-style-type: circle;">
<li>mounting type: headset or pivot bracket</li>
<li>the inside diameter of the upper and lower headtube of the frame</li>
<li>the diameter of the outer fork tube in the lower and upper part (there are conical tubes)</li>
<li>the type of bearing mounting: external, semi-integrated or integrated</li>
<li>the type of bearing: ball, cartridge, ...</li>
<p><br />For use in mountain biking we recommend using a waterproof headset.</p>
<p><br /><br /><br />We offer many additional components to an <strong>MTB headset</strong>: stem caps, spacers and stars ...<br /><br />The biggest specialist brands are proposed such as <a href="https://canecreek.com/" target="_blank" rel="noopener">Cane Creek</a>, <a href="http://www.diacompe.com.tw/" target="_blank" rel="noopener">Dia compe</a>, Ritchey, Stronglight, FSA, Neco, VP Components, ...</p>