Full-Suspension Pivot Hardware
System
Each suspension pivot is reviewed as a working stack: bearing interface, spacer, shoulder, thread engagement, access, locking method, and service needs. PremFixer manufactures drawing-controlled full-suspension bicycle pivot hardware systems—not only individual bolts. Required pivot bolts, axles, sleeves, nuts, and spacers are scoped against the approved frame design.
Drawing-Controlled BOM Scope
Main pivot, rocker link, chain stay, shock mount, and bearing-retainer hardware can be mapped when included in the approved frame BOM.
Assembly Inputs Confirmed
Torque and tightening requirements are taken from the approved assembly drawing, instructions, and project review; e-MTB status alone does not set a higher value.
Project Documentation
Drawing, material, batch, and inspection records are aligned to the documentation package agreed for the project.
Engineering + Production Handoff
Sample and production steps follow the approved revision, quantity plan, and project requirements rather than a blanket delivery promise.
Full-Suspension Pivot Bolt Configurations
Six representative pivot-bolt configurations covering flanged sleeves, shoulder bolts, locking pairs, and custom axle geometries. Final dimensions, threads, materials, and finishes are manufactured to the approved drawing. Images show representative configurations and are not proof of fit for a named brand or frame.
Flanged Pivot Sleeve Set
Matched sleeve and locking components for drawing-specific pivot widths.
Locking Pivot Axle with Flange Nut
Black-finished axle components with paired flange nuts and a project-specified locking method.
Shoulder Bolt for Bike Linkage
Multiple shoulder lengths and thread positions for linkage and frame interfaces.
Flange-Head Pivot Pair
Precision-machined flange and shoulder transitions for controlled bearing support.
Stepped Shoulder Pivot Bolts
Compact stepped geometry for constrained linkage and bearing-stack assemblies.
Hex-Head Pivot Axle Set
External-drive axle and nut configuration for accessible installation and service.
Full-Suspension Engineering Inputs & Project Scope
Common interface, assembly, and procurement questions reviewed from project data
Full-Suspension Pivot Point Map
Every articulation point on the frame — from BB pivot to shock mount
Custom Pivot Bolt & Frame Hardware
Developed for each frame architecture, bearing stack, installation direction, and service requirement
One pivot location. Different geometry for every frame platform.
BB main-pivot and frame-pivot hardware changes with the bearing stack, link width, frame clearance, tool access, and maintenance strategy. We manufacture matched axles, sleeves, bolts, nuts, spacers, and locking components from your approved drawing or physical sample.
Define the interface
- 2D/3D frame and linkage drawings
- Bearing, spacer, and insert stack
- Installation side and tool-access envelope
- Target material, finish, and appearance
Configure the pivot hardware
- Shoulder, seat, and flange geometry
- Head profile and drive interface
- Thread engagement and locking method
- Matched axle, sleeve, nut, and spacer set
Approve before batch production
- DFM-marked drawing and revision control
- Prototype or sample-matching confirmation
- Dimensional and assembly inspection
- Approved BOM retained for repeat orders
Assembly Torque & Project Inputs
Torque comes from the approved assembly inputs; e-MTB designation alone does not set a higher fastener value
| RFQ Input | Review Focus | To Share | Confirm |
|---|---|---|---|
| Approved frame / linkage drawing | Pivot locations, interfaces, and revision | Drawing or STEP file | Confirm the controlled revision |
| Pivot joint and fastener definition | Axle, shoulder, thread, locking screw set, and mating parts | BOM, sample, or part reference | Confirm geometry and assembly relationship |
| Installation direction and access | Tool envelope, service access, and clamping arrangement | Drawing or project note | Confirm assembly sequence |
| Material and finish request | 304/316/316L, 7075-T6, TC2/TC4, or other drawing-specified grade | Drawing, BOM, or physical sample | Confirm grade, condition, and finish |
| Torque / tightening source | Approved assembly instruction, customer target, or test protocol | Available project note | Confirm value and method during review |
| Quantity and project stage | Prototype, sample approval, or production planning | Quantity plus project stage | Confirm the supply plan |
| Inspection and validation scope | Critical dimensions, thread, finish, and requested checks | Known requirements | Confirm records and release criteria |
Project-Specific Retention & Finish Options
Retention methods, coatings, and material options are reviewed against the approved joint and project requirements
Material Options by Drawing
Review 304/316/316L stainless steel, 7075-T6 aluminum, TC2/TC4 titanium, and other grades against the approved drawing or BOM.
| Material family | Confirmed examples | Drawing basis | Finish / validation | Documentation | Selection note |
|---|---|---|---|---|---|
| Stainless steel | 304 / 316 / 316L | Approved drawing or BOM | Project-specified | Records as scoped | Review joint, interface, and environment |
| Aluminum | 7075-T6 | Approved drawing or BOM | Project-specified | Records as scoped | Review fit, application, and finish |
| Titanium | TC2 / TC4 and other specified grades | Approved drawing or BOM | Project-specified | Records as scoped | Use only when specified and approved |
| Other specified grade | Based on an approved drawing or BOM | Customer-approved | Project-specified | Records as scoped | Confirm grade and condition before release |
Representative Pivot Hardware Matrix
Representative configurations organized by pivot location; final references, materials, and fit follow approved project data.
| Pivot Location | Project Reference | Configuration | Material / Finish | Fit Evidence |
|---|---|---|---|---|
| Main Pivot (Bottom-Bracket Area) | PVT-BB-01 | Dual-Sided Main Pivot Axle and Locking Screw Set | Per drawing / BOM | Drawing or sample review |
| Upper Rocker Link | PVT-UR-01 | Shoulder Bolt M8×1.25 | Per drawing / BOM | Drawing or sample review |
| Upper Rocker Link | PVT-UR-02 | Reduced-Head M8×1.25 | Per drawing / BOM | Drawing or sample review |
| Lower Rocker / Chain Stay | PVT-LR-01 | Shoulder Bolt M8×1.0 | Per drawing / BOM | Drawing or sample review |
| Lower Rocker / Chain Stay | PVT-LR-02 | Shoulder Bolt M10×1.5 | Per drawing / BOM | Drawing or sample review |
| Seat Stay Pivot | PVT-SS-01 | Shoulder Bolt M6×1.0 | Per drawing / BOM | Drawing or sample review |
| Seat Stay Pivot | PVT-SS-02 | Reduced-Head M6×1.0 | Per drawing / BOM | Drawing or sample review |
| Shock Mount (Eyelet) | PVT-SM-01 | Reduced-Head M8×1.25 | Per drawing / BOM | Drawing or sample review |
| Shock Mount (Clevis) | PVT-SM-02 | Shoulder Bolt M6×1.0 | Per drawing / BOM | Drawing or sample review |
| Bearing Retainer | PVT-BR-01 | Flat-Head M3–M5 | Per drawing / BOM | Drawing or sample review |
| Linkage Nut | PVT-LN-01 | Flange Lock Nut M8×1.0–1.25 | Per drawing / BOM | Drawing or sample review |
Customer Teams, One Project Review
Support for frame manufacturers, assembly programs, and engineering and production teams
Frame Manufacturer
Share the frame BOM and approved drawings; project scope can cover the pivot fasteners, axles, sleeves, nuts, and retainers included in that program.
- Frame BOM and revision intake
- Pivot hardware mapped to the approved scope
- Packaging and quantity plan confirmed per project
Assembly Brand / OEM
Project-specific hardware inside the frame, with assembly and documentation requirements reviewed against the approved scope.
- Labeling or packaging brief
- Assembly notes and torque source
- Batch and document package as agreed
Engineering & Production
Drawing review, sample coordination, and revision-controlled production support for frame programs.
- Drawing and BOM intake
- Interface and drawing review
- Assembly documentation per project scope
Supply Chain Project Inputs
Procurement and documentation steps are confirmed against the frame program, not assumed as universal service terms
RFQ Inputs
Start with any drawing, STEP file, BOM, or sample plus quantity and project stage. Prototype and production scope are confirmed after review.
Engineering to Production Planning
Sample, approval, and production steps are planned against the approved drawing, BOM, and project requirements.
Packaging & Delivery Planning
Packaging, labels, quantities, and delivery plans are confirmed with the project team before release.
Project Documentation
Drawing, material, batch, and inspection records can be aligned to the documentation package agreed for the order.
How We Work Together
A compact 4-stage process from pivot BOM review to project-specific production supply.
Requirements Review
Send any frame drawing, STEP file, BOM, or sample with quantity and project stage. Pivot locations, bearing interfaces, assembly notes, or an available torque source help the review.
Pivot BOM Proposal
Receive a project-specific scope and quotation path after review; material, finish, torque, and inspection notes remain tied to approved inputs.
Output: pivot hardware scope and quote path.
Samples & Fit Check
Sample production supports frame-fit review, bearing clearance checks, and assembly torque confirmation where included in scope.
Commercial Confirmation
After sample review, confirm PO details, approved revision, documentation, and the production plan.
Output: reviewed pivot sample set and confirmed plan.
Production
Production follows the approved pivot BOM, drawing tolerances, thread specification, coating, and torque requirement.
QC Release
Dimensional, thread, coating, and other checks are prepared before shipment when they are included in the order requirements.
Output: finished pivot batch with scoped release records.
Delivery
Shipment, packaging, labeling, and delivery plans follow the approved project requirements.
Ongoing Support
Reorder and revision feedback can be coordinated against the approved hardware scope and documentation.
Output: project-aligned pivot hardware supply.
Need drawing-controlled pivot hardware for your frame BOM?
Send any frame drawing, STEP file, BOM, or sample with quantity and project stage. PremFixer can map the required pivot locations and return a project-specific quote path. Detailed tolerances, torque targets, and test protocols can follow during engineering review.
Explore Related Solutions
Fastener systems that complement your full-suspension frame manufacturing. Review materials, manufacturing, and quality context alongside this solution.
MTB Hardtail
Complete fastener BOM for hardtail MTB frames — headset, BB, brake, dropout hardware.
Retention Systems
Wedge-locking, threadlocker, or other retention approaches reviewed against the joint and assembly requirements.
Aluminum Frame Systems
Thread inserts, weld-in bosses, and frame-interface hardware reviewed against the approved design.
Frequently Asked Questions
Project-focused answers about full-suspension pivot hardware
Can you supply brand-specific pivot bolt kits for a named MTB or eMTB frame?
We review drawing, STEP, BOM, or sample information for each project. Existing photos and configurations are representative and do not prove fit for a named brand or frame. Share the approved interface data, quantity, and project stage for a project-specific review.
How are torque requirements handled for MTB and e-MTB assemblies?
The assembly drawing, approved instructions, fastener, joint, materials, and interface determine tightening requirements. e-MTB status alone does not justify a higher value; any torque target or test protocol is confirmed during follow-up engineering review.
What material options can be reviewed for pivot hardware?
Confirmed examples include 304/316/316L stainless steel, 7075-T6 aluminum, and TC2/TC4 titanium. Other grades can be considered when specified by the drawing or BOM. Selection, finish, and validation requirements are project-specific; no grade is a universal substitute.
Ready to Discuss Your Pivot Hardware Project?
Send any frame drawing, STEP file, BOM, or sample with quantity and project stage. Detailed tolerances, torque targets, and test protocols can follow during engineering review. For interface review, see MTB frame pivot hardware engineering and DFM review.