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Shimano Altus M313 8 speed Front Derailleur
in stock1-2 weekdays
Shimano Rotor 180mm Center Lock
Shimano
17,29 €
in stock1-2 weekdays
Schwalbe Road Cruiser K-Guard wire bead tire 28x1,25 black
in stock1-2 weekdays
Shimano Ultegra 11 speed Jockey Wheels 6800
in stock1-2 weekdays
Sunrace 7 Gears Freewheel 13-28T
in stock1-2 weekdays
Atran Velo Front Carrier Tour 24-28 "AVS
in stock1-2 weekdays
Shimano Alivio T4010 48 T Chainring
in stock1-2 weekdays
Pioneer Chainset 42T Black with Chain Guard 170 mm
Out of stockExpected 28/07/2026
KMC B1 Chain 1/2 x 1/8" Black
KMC
4,09 €
in stock1-2 weekdays
PRO seatpost clamp with quick release 34,9 mm
in stock1-2 weekdays
Syncros RR 2.0 Stem 90mm
Syncros
81,99 €
Pre-orderExpected 08/06/2026
Shimano Tiagra 4700 chainring 50T BCD110 MK
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Vredestein butyl tube 700 x 32-47c with 40mm Dunlop valve bulk
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Grip Nexus Sm73r 90 mm price per piece
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Shimano G05A resin brake pads
Shimano
10,29 €
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Shimano Gear Cable Set Optislick MTB Sort
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AXA Flex Mount bracket for ring locks
Pre-order5-10 weekdays
BBB Aerobase TT- and tri-bar
BBB
55,99 €
in stock1-2 weekdays
Shimano Nexus 7 small bearing for left side
in stock1-2 weekdays
2 Tire + 2 Tubes 5 mm Puncture Protection 700x25c
in stock1-2 weekdays
Shimano Sora/Tiagra cassette 9 gear 12-25T HG50
Pre-orderExpected 23/06/2026
Shimano Chainring 36T fc-t4010
Shimano
10,69 €
Pre-orderExpected 23/06/2026
Shimano Claris Rear Derailleur R2000 Medium Arm
in stock1-2 weekdays
Schwalbe Marathon Plus "New Flatless" 700x28c
Pre-orderExpected 16/06/2026
Shimano BR-MT410 Hydraulic Brake Caliper
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Hutchinson Caracal Race TLR folding tire gravel 700x45c tan
in stock1-2 weekdays
Semi Ahead in aluminum
BBG
17,99 €
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Shimano Altus pulley wheels 13t + 15t
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Schwalbe One Race Guard Lite folding tire for road 700x25c black
in stock1-2 weekdays
Schwalbe Tough Tom 27,5 x 2,35" K-Guard
Pre-order4-10 weekdays
Pressure pin for Nexus 3 gears hub
in stock1-2 weekdays
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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.