FAQ-All about our bikes

That varies from model to model. Basically, we offer everything for body sizes from approx. 150 cm (Aerfast, Visioner Prana) to 205 cm (Aernario XXL).

If you are between two frame sizes, the following applies: For a more agile, sporty or "race" riding style, choose the smaller frame size. For a smoother, touring-oriented ride, choose the larger frame size.

• Touring position
You are riding a road bike. What matters to you is not so much the speed, but rather the distance. The touring position is usually more upright and therefore more comfortable. Touring and long-distance road bikes are made for long distances. Here it is particularly important that the neck does not hurt after just one hour. Road bikes with a long-distance geometry therefore usually have a shorter top tube in relation to the seat tube, coupled with a longer head tube.

• Sporty position
The sporty riding position is between the touring and race positions. The rider sits in a slightly stretched position, as is typical for a road bike, but not too extreme. Road bikes that allow this position usually have similarly long seat and top tubes and a moderate head tube length.

• Race position
Do you also race and don't want to waste a second because of a too upright seat position and suboptimal aerodynamics? Then a road bike with a longer top tube and relatively short head tube is for you. The long top tube and short head tube lead to a stretched, bent and aerodynamically optimal riding position.

• ST - Seat tube length
  • The seat tube length corresponds approximately to the frame size. The value is measured from the centre of the bottom bracket axle to the top edge of the seat tube.

• TT – Top tube length
  • The most important value of a bike, because it allows you to roughly estimate the seating position and thus the comfort. The top tube is measured in the imaginary horizontal line from the centre of the top edge of the head tube to the centre of the seat tube and not along the actual tube.

• HT – Headtube
  •  On comfort bikes it is usually somewhat longer than on race bikes. The forces acting on the head tube during steering also play a role. The design of the front section has a very large influence on the aerodynamic properties. In addition, however, the centre of gravity is also placed on the top tube, especially with carbon frames. In addition to reducing the forces acting on the frame, this also results in a less sluggish feeling for the rider.

• CS – Chain stay length
  
  • Chain stay length is important for handling. Short stays make the bike nimble, agile and easy to turn. Long stays make for a smoother ride.

• Stack
  • The stack (measured vertically from the centre of the bottom bracket to the centre of the top of the head tube) provides information about the height of the front of a bike - independent of tyres or stem. If the stack is too high, not enough pressure can be applied to the front wheel and the front is too high.

• Reach
  • The reach is the length of a bike independent of the seat angle. The reach is the distance measured horizontally from the centre of the bottom bracket to the centre of the head tube. A long reach means a stretched position when riding downhill in a standing position, a short reach means a more upright position.

• ST° - Seat angle
  
  • The seat angle influences the riding position and especially the power transmission uphill. If the seat angle is too flat, the rider sits too rear-heavy and struggles unnecessarily uphill, or the bike rears up sooner. The seat angle depends strongly on the bike category.

• HT° - Steering angle
  
  • The steering angle has a decisive influence on the steering behaviour of a bike. The steeper, the more manoeuvrable (negative: more unsteady), the flatter, the smoother (negative: more sluggish) and more forgiving.

• Stem length
  
  • This is not directly related to geometry, but it is nevertheless important: it has a huge influence on the riding position and steering behaviour of a bike. It can be used to achieve a more stretched or compact (and relaxed) riding position beyond the length of the top tube.

• If this is your first road bike, gravel bike, mountain bike or e-bike, take a look at our size chart for our recommendations. Thanks to our many years of experience, we recommend a suitable frame height for every body size. If you are still unsure, please contact us! We will be pleased to advise you!
• If you already have a bike and feel comfortable on it, it serves as an optimal comparison. For this we need the "stack" and "reach" of your bike. You can determine this either online or yourself. All you need is a folding rule and a bit of mathematics.
  • To measure the stack, stand your bike up straight. First measure the distance from the bottom to the top centre of the head tube. (A) (picture 1 left). Then measure the distance from the ground to the centre of the bottom bracket (B) (picture 2 right). Subtract these values (A-B). The result is the STACK.

• To measure the reach, stand your bike straight with the rear wheel against a wall. First measure the distance from the wall to the top edge of the centre of the head tube. (value A) (picture 4 right). Then measure the distance from the wall to the centre of the bottom bracket (value B). Subtract these values (A-B). Then you have your REACH.

• If you sit well on your current bike, you can compare the stack and reach with our specifications. The bike/frame size that most closely matches your current bike would be suitable for you. You can fine-tune the stem length and handlebar height. The saddle position, different handlebars or the different humps of the shifting brake levers can also influence the position.
• Of course we are always ready to help you with this!

• *The permissible total or system weight means the total weight that acts on the bicycle. This means the rider in full gear as well as all parts attached to the bike such as the saddle bag and bottles in the bottle cage.
• The permissible total weight of our bicycles usually depends on the respective wheels and the material used. With carbon wheels, the maximum system weight is lower than with aluminium wheels. With standard aluminium wheels, our bikes can be loaded with 120 kg.
• Our wheel partner DT Swiss offers exact specifications for all wheels:
  • https://www.dtswiss.com/de/laufraeder/laufraeder-strasse
  • https://www.dtswiss.com/de/laufraeder/laufraeder-mtb
    
    
• An example of our standard road bike wheels from DT Swiss:
  • P1800: 120 kg max. system weight
  • PRC1400: 110 kg max. system weight
  • ARC1600 Storck Edition: 110 kg max. system weight

• In this video we show you how to set up your bike with disc brakes. This video applies to any Storck bike with disc brakes. This includes the Fascenario.3 (Comp/ Pro), the Aerfast3 (Comp/ Pro/ 25th), Grix (Pro/ Platinum/ 25th), Aero3, Urban CTS, name:2, e:drenalin (.2), e:drenic (.2), e:rebel. (differences are possible)
• GRIX: Please note when removing the thru axle: When removing the axle, hold the nut in the frame with your second hand so that it does not get lost. with the second hand, so that it does not get lost. When installing the axle, make sure the nut is placed flush in the groove. Hold the nut Secure the nut in position with the second hand when screwing in the axle. In addition, ensure that the nut is seated straight to prevent damage to the thread and paint. prevent damage to the thread and paint. 

• The Comp line offers you carbon frames with a good price-performance ratio at test winner level and is accessible to every cyclist.
• The Pro line offers you the best of both worlds. High-quality, special paint finishes, even higher-quality carbon processing and super equipment. Less resin is used in the carbon fibre, which makes the carbon frame lighter and of higher quality than the Comp line.
• The exclusive Platinum line goes one better. It means high-end (and) lightweight construction. It is only made with the absolute highest quality carbon fibres and equipped with outstanding components. These are our TOP models. This carbon fibre is processed with a very low resin content, which gives the carbon frame a lighter weight. In addition, our Platinum models are characterised by a minimalist and noble glaze (lacquer) in order to be able to further save weight.

• The carbon fibres in our Pro and Platinum frames are each manufactured with higher tensile strength and Dual Resin process. This allows us to produce lighter frames with slightly higher stiffness.

• We offer a wide range of the most popular cycling groupsets as standard.
  • These include Shimano with the 105, Ultegra (Di2) and Dura Ace (Di2) or the GRX.
  • SRAM uses the Rival (eTap AXS), Force (eTap AXS) (Wide), the XX1 AXS or the Red (eTap AXS).
  • We do not currently use other groupsets such as Campagnolo, as there is too little interest in them.

• When using STORCK bikes on roller trainers, the loads on the dropouts and on the rear triangle do not correspond to the actual application and have an effect especially in the saddle. Therefore STORCK does not officially approve the use of STORCK bikes on roller trainers, as there is currently no official test procedure for this application.
• The use of STORCK bikes on roller trainers is possible without warranty, but is at your own risk. STORCK does not accept any guarantee or liability for damage resulting from the use of the bikes on a roller trainer.

• You can work with so-called spacers to set the optimum seating position for you

• Standard for Aerfast models and the Aernario.3: 4 cm spacer height (adjustable in 0.5 cm steps)

• Standard for all other models: 3 cm spacer height (adjustable in 0.5 cm steps)

• If you have any requests that differ from the standard, please enter them in the comments field when ordering

• The distance to the chain stay, sometimes the distance to the seat tube or to the brake (especially with rim brakes) are decisive for the possible tyre width. During the production and development of the frames, a minimum distance to these points is determined. This results in our official possible tyre widths. You will find the information in the following chart.
• Is your wheel missing from this list or do you need further information? Then contact our service department by e-mail at store-idstein@storck-bikes.com.

All work carried out on your bike is at your own risk. In case of doubt, you should bring/ send your bike to STORCK. STORCK accepts no responsibility or liability for the contents of this FAQ.