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Union Geardrop GH-191 Giant
Union
19,49 €
in stock1-2 weekdays
Promovec Extender cable for Display 1750mm
in stock1-2 weekdays
Shimano Pin for Hydraulic Brake Hose BH90 100 pcs tub
in stock1-2 weekdays
Goodyear Peak Ultimate Tubeless Complete 29 x 2.4
in stock1-2 weekdays
Shimano Freehub Body 6800 and RS81
in stock1-2 weekdays
Shimano Altus Shift and Brake Lever 8-Speed Silver
Pre-order6-8 weekdays
AXA Folding Lock 1000 Black 105 cm 10 mm
in stock1-2 weekdays
Union Geardrop GH-199 KTM Direct Mount 142 x 12
in stock1-2 weekdays
SR-SUNTOUR Guiding bushing NCX-DLO
in stock1-2 weekdays
Vittoria Competition race tube 700 x 19-23 48 mm. Latex
in stock1-2 weekdays
Avid Bleed block for Trail and Guide
in stock1-2 weekdays
XLC gear hanger A26
XLC
23,99 €
in stock1-2 weekdays
SRAM X1 11-Speed Tripper/Shift Lever
in stock1-2 weekdays
Shimano Dura Ace 9000 chainring 53T
in stock1-2 weekdays
 Continental Trinotal trail rapid folding tire MTB 29x2,40 (60-622) black
in stock1-2 weekdays
PRO Koryak Riser Alu MTB handlebar 80 cm wide 31.8mm 30mm rise
Pre-order10-14 weekdays
Rock Shox TurnKey damper unit for remote
Rock Shox
45,99 €
Pre-orderExpected 21/10/2026
Syncros Creston IC SL Aero integrated handlebar/stem black 400mm/130mm
in stock1-2 weekdays
Shimano Altus Shift and Brake Lever 3-speed Silver
in stock1-2 weekdays
Schwalbe Aerothan tube 28" (23/32-622/630) with SV valve 40mm
Pre-orderExpected 29/10/2026
Rockshox dropper post Reverb AXS b1 342.2 mm 34.9 mm 100 mm
Pre-order5-10 weekdays
Union Geardrop GH-201 Cube
Union
13,29 €
in stock1-2 weekdays
OUTLET
Sram crank set Eagle XX1 DUB 34T 175 mm
in stock1-2 weekdays
Shimano XT M8100 Crankset 2x12s, 175mm, 36/26t
in stock1-2 weekdays
DMR Vault Flats Pedals Red
DMR Bikes
138,99 €
in stock1-2 weekdays
Continental Argotal 27.5" x 2.60 Trail Casing
in stock1-2 weekdays
Shimano 105 R7120 12-Speed STI Shifter Right
in stock1-2 weekdays
OUTLET
Bosch COBI.Bike e-bike thumb control unit
in stock1-2 weekdays
AXA clinch strong chain lock 85 cm 6 mm green
in stock1-2 weekdays
Spray.Bike spray paint 400 ml Awesome FX Cobweb black
in stock1-2 weekdays
Shimano Cues FC-U6030-1 crankset double road 32/46T 9/10 speed 172.5mm
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.