Motorcycle front wheel refitted opposite four-piston caliper adapter connector
By designing an adapter for retrofitting motorcycle front wheel four-piston calipers, the problem of insufficient braking performance of single-direction dual-piston calipers was solved, resulting in a significant improvement in braking force and safety. The installation process is simple.
Patent Information
- Application Number
- CN202520905131.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-05-09
AI Technical Summary
The original single-direction dual-piston calipers on models such as the SYM Cruisym 150 have weak braking performance and cannot provide sufficient braking force during high-speed driving or emergency braking, posing a safety hazard.
Design a motorcycle front wheel retrofit adapter for opposed four-piston calipers. It is connected by multiple connecting holes and bolts to upgrade to opposed four-piston calipers and enhance braking force.
The braking force is greatly enhanced, the braking distance is shortened, and driving safety is significantly improved. Moreover, the installation process is simple and easy for users to modify.
Smart Images

Figure CN223894830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to motorcycle accessories, specifically a motorcycle front wheel conversion adapter for opposing four-piston calipers. Background Technology
[0002] The factory-equipped single-piston calipers on models like the SYM Cruisym 150 have relatively weak braking performance, failing to provide sufficient braking force during high-speed riding or emergency braking, posing a safety hazard. As motorcycle enthusiasts increase their demands for riding safety and performance, the market demand for braking system upgrades is growing. Opposed four-piston calipers, due to their superior braking performance, have become a popular choice for modifications. Therefore, designing a compatible caliper adapter is an urgent problem that technical personnel in related fields need to solve. Utility Model Content
[0003] To solve the above technical problems, the technical solution provided by this utility model is as follows: a motorcycle front wheel modification anti-op four-piston caliper adapter, including a first plate, a second plate extending laterally to one side from the top of the first plate, and a third plate being provided at the end of the second plate away from the first plate away from the first plate, so that the longitudinal interface of the adapter is Z-shaped.
[0004] The first plate has a first arc-shaped plate and a second arc-shaped plate protruding outward from both ends of its bottom. The first arc-shaped plate and the second arc-shaped plate are respectively provided with a first connecting hole and a second connecting hole. At the end of the first plate where the second arc-shaped plate is provided, a straight groove plate is provided outward from its top. The straight groove plate is provided with a third connecting hole and a fourth connecting hole.
[0005] The third plate has a third arc plate at one end near the first arc plate and a fourth arc plate at the other end. The third arc plate has a fifth connecting hole and the fourth arc plate has a sixth connecting hole.
[0006] Furthermore, the bottom surface of the second plate is a bottom arc-shaped surface, and the top surface of the second plate is provided with a top arc-shaped surface one, a top horizontal surface and a top arc-shaped surface two in sequence from the first arc-shaped plate end to the second arc-shaped plate end. The bottom arc-shaped surface, the top arc-shaped surface one and the top arc-shaped surface two are all downward convex arc-shaped surfaces.
[0007] Furthermore, an arc-shaped groove is provided along the length of the bottom arc-shaped surface near the end of the second plate.
[0008] Furthermore, the height of the fourth arc-shaped plate is lower than the height of the third arc-shaped plate, and the fourth arc-shaped plate and the third arc-shaped plate are connected by an upper inclined surface.
[0009] Furthermore, a quadrilateral through groove is provided in the area below the third arc-shaped plate of the third plate, and an upper closing plate is provided on the top of the quadrilateral through groove. The outer side of the upper closing plate away from the first plate is an outer inclined surface that slopes from the bottom towards the first plate.
[0010] Furthermore, the first connecting hole, the second connecting hole, the third connecting hole, and the fourth connecting hole are connected to the original motorcycle front wheel suspension by bolts, and the fifth connecting hole and the sixth connecting hole are connected to the opposing four-piston calipers by bolts.
[0011] Furthermore, the caliper adapter code is applicable to the SYM Cruisym 150 model.
[0012] The advantages of this utility model compared with the prior art are as follows: This utility model upgrades the original single-direction dual-piston caliper to a counter-direction four-piston caliper, which greatly enhances the braking force and shortens the braking distance, thereby significantly improving driving safety; the installation process is relatively simple and convenient for users to modify by connecting through multiple connecting holes and bolts. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the front part of a motorcycle front wheel modification counter for a four-piston caliper adapter.
[0014] Figure 2 This is a schematic diagram of the front structure of a motorcycle front wheel modification opposing four-piston caliper adapter.
[0015] Figure 3 This is a schematic diagram of the bottom structure of a motorcycle front wheel modification opposing four-piston caliper adapter.
[0016] Figure 4 This is a schematic diagram of the rear structure of a motorcycle front wheel modification counter for a four-piston caliper adapter. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0018] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0019] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0020] In the description of the embodiments of this utility model, "a plurality of" means at least two.
[0021] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] Example:
[0023] Combined with appendix Figure 1-4 This embodiment discloses a motorcycle front wheel conversion anti-piston caliper adapter, including a first plate 1, a second plate 2 extending laterally to one side from the top of the first plate 1, and a third plate 3 being provided at the end of the second plate 2 away from the first plate 1 in a direction away from the first plate 1, so that the longitudinal interface of the adapter is Z-shaped.
[0024] The bottom ends of the first plate 1 are respectively provided with a first arc plate 4 and a second arc plate 5 protruding outwards. The first arc plate 4 and the second arc plate 5 are respectively provided with a first connecting hole 6 and a second connecting hole 7. The first plate 1 is provided with a straight groove plate 8 at one end of the second arc plate 5, and the straight groove plate 8 is provided with a third connecting hole 9 and a fourth connecting hole 10.
[0025] The third plate 3 has a third arc plate 11 at one end near the first arc plate 4 and a fourth arc plate 12 at the other end. The third arc plate 11 has a fifth connecting hole 13 and the fourth arc plate 12 has a sixth connecting hole 14.
[0026] The bottom surface of the second plate 2 is a bottom arc surface 201. The top surface of the second plate 2 is provided with a top arc surface 1 202, a top horizontal surface 203 and a top arc surface 204 in sequence from the end of the first arc plate 4 to the second arc plate 5. The bottom arc surface 201, the top arc surface 1 202 and the top arc surface 204 are all downward convex arc surfaces. The bottom arc surface 201 is provided with an arc groove 205 along its length at one end near the second plate.
[0027] The height of the fourth arc plate 12 is lower than the height of the third arc plate 11, and the fourth arc plate 12 and the third arc plate 11 are connected by an upper inclined surface.
[0028] The third plate 3 is provided with a quadrilateral through groove 301 in the area below the third arc plate 11. The top of the quadrilateral through groove 301 is provided with an upper closing plate 302. The outer side of the upper closing plate 302 away from the first plate 1 is an outer inclined surface that slopes from the bottom towards the first plate 1.
[0029] The first connecting hole 6, the second connecting hole 7, the third connecting hole 9, and the fourth connecting hole 10 are connected to the original motorcycle front wheel suspension by bolts, and the fifth connecting hole 13 and the sixth connecting hole 14 are connected to the opposing four-piston calipers by bolts; the caliper adapter code in this embodiment is applicable to the SYM Cruisym 150 model.
[0030] The original front caliper of the SYM Cruisym 150 has a single-direction dual-piston design, which has relatively weak braking performance. Through the caliper adapter in this embodiment, a more powerful opposed four-piston caliper can be installed, such as those from well-known brands like Brembo, Amkor, and Cheliwu. After the modification, the braking performance and braking distance will be superior to the original single-direction dual-piston caliper of the Cruisym 150, thereby significantly improving driving safety.
[0031] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A motorcycle front wheel retrofit adapter for opposed four-piston calipers, characterized in that, It includes a first plate, a second plate extending laterally to one side from the top of the first plate, and a third plate extending from the end of the second plate away from the first plate away from the first plate, so that the vertical interface of the adapter code is Z-shaped. The first plate has a first arc-shaped plate and a second arc-shaped plate protruding outward from both ends of its bottom. The first arc-shaped plate and the second arc-shaped plate are respectively provided with a first connecting hole and a second connecting hole. At the end of the first plate where the second arc-shaped plate is provided, a straight groove plate is provided outward from its top. The straight groove plate is provided with a third connecting hole and a fourth connecting hole. The third plate has a third arc plate at one end near the first arc plate and a fourth arc plate at the other end. The third arc plate has a fifth connecting hole and the fourth arc plate has a sixth connecting hole.
2. The motorcycle front wheel retrofit anti-piston caliper adapter code according to claim 1, characterized in that, The bottom surface of the second plate is a bottom arc-shaped surface. The top surface of the second plate is provided with a top arc-shaped surface one, a top horizontal surface and a top arc-shaped surface two in sequence from the first arc-shaped plate end to the second arc-shaped plate end. The bottom arc-shaped surface, the top arc-shaped surface one and the top arc-shaped surface two are all downward convex arc-shaped surfaces.
3. A motorcycle front wheel conversion adapter for opposed four-piston calipers according to claim 2, characterized in that, An arc-shaped groove is provided along the length of the bottom arc-shaped surface near the end of the second plate.
4. A motorcycle front wheel conversion adapter for opposed four-piston calipers according to claim 1, characterized in that, The height of the fourth arc-shaped plate is lower than that of the third arc-shaped plate, and the fourth arc-shaped plate and the third arc-shaped plate are connected by an upper inclined surface.
5. A motorcycle front wheel conversion adapter for opposed four-piston calipers according to claim 1, characterized in that, The third plate has a quadrilateral through groove in the area below the third arc-shaped plate. The top of the quadrilateral through groove is provided with an upper sealing plate. The outer side of the upper sealing plate away from the first plate is an outer inclined surface that slopes from the bottom towards the first plate.
6. A motorcycle front wheel retrofit four-piston caliper adapter according to claim 1, characterized in that, The first, second, third, and fourth connecting holes are connected to the original motorcycle front wheel suspension by bolts, and the fifth and sixth connecting holes are connected to the opposing four-piston calipers by bolts.
7. A motorcycle front wheel conversion adapter for opposed four-piston calipers according to claim 1, characterized in that, The caliper adapter code is applicable to the SYM Cruisym 150 model.