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Shimano Dura Ace R9200 12-Speed Crankset 172,5mm. 54/40T
in stock1-2 weekdays
Mitas Tubeless Supra Kit 29"
Mitas
20,99 €
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LTWOO AT12 Shifter 1x12 sp right
LTWOO
45,99 €
42,29 €
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Syncros All Mountain Lock on Handle Small Blue
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Brooks handlebar tape leather antique brown
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Bikone DCTech bottom bracket BSA Shimano MTB with ceramic bearings
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Shimano  FH-TC500-MS rear hub 142mm 28 holes
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Shimano XTR cable bolt M6x9,2mm for rear derailleur model RD-M9000
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CeramicSpeed Alpha Gravel bottom bracket PF30 24mm
Pre-order3-6 weekdays
SunRace Cassette 10 speed 11-40 silver
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Pirelli Cinturato Gravel H TLR Performance folding tire 27.5x2.00 black
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CONTEC Mirage Ergo Exclusiv handlebar grips 135mm pair black
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Ergotec Comfort L saddle 265 x 206 mm PU memory foam black
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CeramicSpeed Ceramic Oversized Pulley Wheels Black Campagnolo
Pre-order3-6 weekdays
Union Geardrop GH-121 Fuji, Marin
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Lock Nut Unit Right WH-RS11-R
Shimano
4,09 €
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ESI Grip End Plugs 2 pcs Green
ESI Grips
4,59 €
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Zipp Service Course SL 80 styr 46 cm. Matte Black
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Sram Force AXS Chainring 42T 1x12 Speed 107 MM BCD
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Kickstand double 28"
BBG
9,69 €
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Zipp Service Course 70 XPLR 460 mm.
Zipp
39,99 €
Out of stockExpected 15/02/2027
AbsoluteBlack Chainring 36T Direct Mount Shimano 12-Speed Black
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Fork Road 1 1/8" aluminum ahead
BBG
130,99 €
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LTWOO AT12 Rear Derailleur 1x12sp carbon
LTWOO
90,99 €
84,59 €
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Sram Force 22 Yaw front derailleur 11-speed for braze-on
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Shimano Dura-Ace 9000 front brake standard
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Bike Attitude E-Bike chain NS10e 1/2 x 11/128in 10 speed 136 links
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Shimano Nexus dust cap right 8-speed hub
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CeramicSpeed OSPW X ALPHA for SRAM Eagle Transmission Silver
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Pirelli P Zero Race RS TLR folding tire road 700 x 32C retro
Pre-orderExpected 04/09/2026
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Shimano FH-TC600-HM-Boost rear hub 148mm 28 holes
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Shimano GRX axle complete for front wheel model WH-RX880-TL-F12-700c
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News

Spare parts for bicycles

There are an incredible number of different bikes, and almost all models are made up of different parts throughout several different brands. There are also a great many different spare parts for bikes throughout the categories of gear systems, brakes, handlebars, saddles, tires, tubes, handlebar grips, stems, locks, headsets, frames, front forks, and many other components.

 

Gear systems and brakes

Overall, there are two types of gear systems; external gears and internal gears.

External gear systems have a rear derailleur, cassette, or chainring, and sometimes a front derailleur if there are also gears on the front of the bike. Internal gears have a gear hub, often with 3, 5, 7, or 8 gears.

On external gears, you can have many more gears, since you multiply the number of chainrings at the back by those at the front. So you count all the combinations that can be done on the bike. At the back, there can be up to 12 chainrings at the front, so there are 1, 2, or 3 chainrings on the crankset.

Common to both internal and external gear systems is that there is a shift lever on the handlebars that makes it possible to change gears, most systems work with cable and wire pulls, while other newer systems are electronic.

 

Cockpit - handlebars, stem, seat post, and saddle

The handlebars, the stem, the seat post, and the saddle. The handlebar grips or the handlebars are often called the cockpit of the bicycle.

These components can come in many different shapes and styles, but the commonality is that almost all bicycles have these parts.

 

Handlebars

If we look at handlebars, there are different types of handlebars for different bikes. Handlebars are known to come in different shapes and sizes, such as downward-curved handlebars for racers. In contrast, there are also straighter handlebars that we know from mountain bikes, and in addition, the often more backward curved handlebars that are known for their use in city bikes and everyday bikes. The handlebars on BMX bikes also stand out a bit, as they are often much higher.

 

Stem

In general, there are two types of stems; the ahead-system, where the stem does not go down into the frame's crown tube but it's mounted on the outside of the front fork stem that goes up through the frame. In addition, there is also the "old" type, which is still available on many new bikes, where the stem goes down into the frame and connects to the front fork.

Both types are available in different lengths, in versions that are adjustable, and for different handlebar diameters.

When we talk about diameter, it is obvious to also mention seat posts. When you order a new seat post, it is important to check which diameter you need. There are some measurements that are widely used, but in addition to the most normal ones, there are a lot of other sizes. The most normal is 27.2mm and 31.6mm.

 

Different materials

The handlebars, seat posts, and stems are available in different materials such as carbon, steel, and aluminum.

Handlebar grips and handlebars are also available in different materials: foam, leather, plastic, rubber, cork, etc.

Their most important task is to give you the right comfort when you cycle.

 

If you have questions about the selection of spare parts or need help finding the right spare part, you are more than welcome to contact us.

Then we will do our best to help you.