Send your drawing or STEP file for engineering review.
PS-B03 Post Mount Brake Boss
PS-B03 is a post mount brake boss reference for bicycle frame and fork interface review. Source reference 650-190-045+21A includes a mapped render and dimension drawing; the approved customer drawing controls the supplied part.
Engineering Role
This disc-brake interface reference supports drawing-controlled boss geometry, thread engagement, shoulder height, caliper stack, alignment, and service-clearance review before quotation.
The mapped render and dimension drawing keep source reference 650-190-045+21A visible for engineering and sourcing review before a formal RFQ.
Specification Snapshot
| PremFixer SKU | PS-B03 |
|---|---|
| Source reference | 650-190-045+21A |
| Series | Disc Brake System Accessories |
| Mapped application | Bicycle frame and fork disc-brake interface; drawing controlled |
| Catalog notes | Bicycle frame and fork disc-brake interface; drawing controlled |
| CAD status | CAD/3D file is handled by request fallback for controlled engineering review. |
Dimensions & Interface Control
The mapped source drawing calls out an M10 x 1.25P thread and reference geometry including 24 mm and 34.2 mm envelopes. Confirm every dimension, datum, tolerance, mating component, alignment requirement, and assembly stack on the approved drawing.
- Main image and dimension drawing are linked in the media panel for quick visual review.
- Confirm mating parts, frame material, coating stack, torque path, and service access before sampling.
- Custom length, profile, thread, hole position, finish, and packaging can be reviewed during RFQ.
Material, Process & Finish
| Material direction | Drawing-specified material |
|---|---|
| Process direction | CNC machining and supporting operations as specified after drawing review |
| Finish options | Black oxide, ED, zinc-nickel, or drawing-specified finish through qualified partner processing |
Material, manufacturing route, heat treatment, and finish are selected from the approved drawing, joint loads, corrosion target, mating assembly, and required evidence. Supporting treatments and tests are coordinated through qualified partner factories when specified.
Quality & Traceability
Inspection follows the approved drawing, applicable standard, customer requirements, and agreed control plan. Thread gauges, interface dimensions, alignment, surface finish, hardness, coating, torque, corrosion, or dimensional reports are included only when specified for the project.
RFQ Data Checklist
- 2D drawing or marked sample photo for PS-B03.
- Target material, heat treatment, surface finish, and corrosion requirement.
- Assembly location, mating part, torque or load requirement, order quantity, and target timing.
- Packaging, labeling, inspection report, and CAD exchange format requirements.
Need this item built to your drawing?
Send the drawing, sample, or SKU list and PremFixer will review material, finish, tolerance, asset availability, and production options.
Start RFQFrequently Asked Questions
Confirm fit, drawing control, finish options, and documentation before RFQ.
Q1 What applications is this brake mount suitable for?
This disc brake mount is designed for bicycle fork and frame brake interfaces. Final compatibility must be confirmed by frame drawing and brake mount specification.
Q2 Can I order custom dimensions or materials?
Yes. Submit a 2D drawing or STEP file with the material grade, finish, quantity, mating interface, and inspection requirements. Feasible alternatives are reviewed against the application.
Q3 What surface finishes are available?
Black oxide, ED, zinc-nickel, anodizing for an approved aluminum variant, and other specified finishes can be reviewed. Coating system, thickness, color, and corrosion target must be defined for the project.
Q4 Do you provide material certificates?
Material certificates, coating reports, and dimensional or test evidence can be quoted when the approved control plan requires them.