Hongsen products / Product structure and use
How the HS-QX-002A Roller Adjustment Is Arranged
See how the HS-QX-002A threaded lower adjustment is arranged beside the magnetic roller and what bicycle details buyers should send.
The HS-QX-002A places its tire-contact roller on a lower bracket with a visible threaded adjustment rod and hand knob. The rear axle is held higher between the two upright supports. This layout lets a buyer identify the two jobs from the product photos. The upper fittings locate the bicycle, while the lower screw belongs to the roller assembly. The current product record identifies the model as a steel magnetic trainer for the listed 26 to 29 inch range.
The lower screw belongs to the tire-contact assembly
The threaded rod runs from a black hand knob towards the bracket that carries the magnetic unit and metal roller. Its position below the rear axle line shows which assembly it adjusts. The screw changes the position of that lower bracket relative to the frame. It does not replace the axle fittings at the tops of the uprights.
This distinction gives distributors a clearer way to describe the model. The bicycle connects at the axle ends first. The roller assembly is then positioned at the rear tire. Buyers evaluating a sample can check both areas separately and record any approved setup details for their product instructions.
The wide floor members define the setup area
Two parallel tubular members form the front and rear floor contacts. Four capped ends meet the floor, while the triangular uprights rise between them. The resistance unit remains inside this base area instead of projecting from a separate roller frame.
The current catalog records a 59 x 19 x 49 cm measurement and a 7/8 kg N.W./G.W. pair for HS-QX-002A. Keep those fields under their original labels when comparing packing or logistics records. They should not be presented as the trainer’s open floor footprint unless an approved drawing identifies them that way.
Give the supplier the bicycle connection details
The listed 26 to 29 inch range helps narrow the application, but it does not define every rear axle. A useful enquiry names the bicycle type, wheel size and rear-axle specification. It can also request the current instructions for the roller adjustment shown in the product images.
Review the HS-QX-002A product page and the Hongsen indoor trainer category. Contact Hongsen with the target bicycle and requested product documents.