Disc brake cylinder (caliper) QT-4

Disc brake caliper QT-4. The photo marks the mounting holes M8, with two spacings between them – 45 mm and 58 mm, because the holes are not set directly opposite each other.

• The other dimensions given are 73 mm, 62 mm and 89 mm
• The maker does not say what each dimension measures, so we do not assign them a meaning – we compare number with number
• Body is bare, unpainted; pads are blue, the pad holder is separate
• Same row in the list: "Disc brake cylinder (caliper) H" – M8 holes 43 mm apart, "Disc brake cylinder (caliper) E" – M8 holes 68 mm apart
• The caliper is replaced not for wear but when the piston sticks, fluid weeps past the seal, or the pad retaining pin has snapped; the pads themselves are a separate replaceable part
• Do not confuse it with the master cylinder: the caliper presses the pads onto the disc, while a separate item supplies it with fluid – the same category has "Foot brake master cylinder RZ-D002" and four more of its relatives
• Supplier code WI ZLO4101 – quote it again when ordering

To be straight with you: what the marking QT-4 means is not explained in the maker's data, and it does not give the piston diameter. Which exact model and year it fits, the maker did not write, and we do not guess – write us your model and year. Before ordering, measure your caliper's mounting-hole spacing, their thread and the disc thickness – or send a photo: we will check it before you order.

24-month warranty · tel. +370 685 777 56