Full-Suspension Pivot
Fastener Solution
Every threaded fastener on a modern full-suspension or e-MTB frame — one supplier, one quality standard, one traceability system. From the BB pivot locking bolt absorbing 3,500 N+ of combined rider and motor force, to the smallest M3 bearing retainer screw. All in A4-70 316SS. All torque-specified with separate MTB and e-MTB values.
Complete BOM Coverage
Main pivot → rocker link → chain stay → shock mount → bearing retainer. One purchase order covers the whole frame.
MTB + e-MTB Torque Specified
Every SKU ships with differentiated torque values. Separate specs for conventional and electric mountain bikes.
100% Batch Traceable
Material cert traceable to mill heat number. Every batch ships with full Certificate of Conformance.
15-30 Day Lead Time
Mass production delivery in 15-30 days. Same-day shipment for stock DIN/ISO items. Rush orders accommodated.
Full-Suspension Pivot Fastener Kit
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.
Flanged Pivot Sleeve Set
Matched sleeve and locking components for drawing-specific pivot widths.
Locking Pivot Axle Set
Black-finished axle components with paired flange nuts and pre-applied thread locking.
Extended Shoulder Bolt Range
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 Pain Points & PremFixer Solutions
Every pivot bolt challenge has an engineered answer
Full-Suspension Pivot Point Map
Every articulation point on the frame — from BB pivot to shock mount
Custom BB Pivot & Frame Pivot Bolts
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
MTB vs e-MTB Torque Differentiation
Every pivot bolt ships with separate torque values — because motor torque changes everything
| Pivot Location | Fastener Type | MTB Torque | e-MTB Torque |
|---|---|---|---|
| BB Main Pivot | Dual-Sided Locking Bolt | 18–22 N·m | 25–30 N·m |
| Upper Rocker Link | Shoulder Bolt M8 | 10–12 N·m | 14–16 N·m |
| Lower Rocker / Chain Stay | Shoulder Bolt M8 | 10–12 N·m | 14–16 N·m |
| Seat Stay Pivot | Shoulder Bolt M6 | 6–8 N·m | 8–10 N·m |
| Shock Mount (Eyelet) | Reduced-Head Bolt M8 | 10–12 N·m | 12–15 N·m |
| Shock Mount (Clevis) | Shoulder Bolt M6 | 6–8 N·m | 8–10 N·m |
| Bearing Retainer Screws | Flat-Head M3–M5 | 1–3 N·m | 1–3 N·m |
Core Technology Stack
Products, coatings, and retention systems we deploy across all pivot fastener kits
Material Selection Guide
Choose the right material for your riding discipline and production budget
| Material | Grade | Tensile | Salt Spray | Weight | Best For |
|---|---|---|---|---|---|
| A4-70 316SS | A4-70 | 700 MPa | 1,000+ h | Standard | XC / Trail / Enduro (Recommended) |
| 12.9 Steel + Dacromet | 12.9 | 1,200 MPa | 600 h | Standard | DH / High-Impact / Budget |
| 17-4PH Stainless | H900 | 1,100 MPa | 800 h | Standard | Premium Custom / Elite Racing |
| 7075-T6 Aluminum | T6 | 570 MPa | 200 h | −35% | Non-structural / Weight-critical |
| Ti-6Al-4V Titanium | Grade 5 | 950 MPa | 500 h | −42% | Ultra-lightweight Builds |
Complete Pivot Fastener Matrix
17 SKUs across the full-suspension frame — organized by pivot location
| Pivot Location | SKU | Specification | Material | Compatible Brands |
|---|---|---|---|---|
| BB Main Pivot | PVT-BB-01 | Dual-Sided Locking M12×1.5 | A4-70 316SS | Trek / Specialized / Santa Cruz / Giant / Yeti |
| Upper Rocker Link | PVT-UR-01 | Shoulder Bolt M8×1.25 | A4-70 316SS | Trek / Specialized / Santa Cruz |
| Upper Rocker Link | PVT-UR-02 | Reduced-Head M8×1.25 | A4-70 316SS | Giant / Yeti |
| Lower Rocker / Chain Stay | PVT-LR-01 | Shoulder Bolt M8×1.0 | A4-70 316SS | Trek / Specialized / Giant |
| Lower Rocker / Chain Stay | PVT-LR-02 | Shoulder Bolt M10×1.5 | A4-70 316SS | Santa Cruz / Yeti |
| Seat Stay Pivot | PVT-SS-01 | Shoulder Bolt M6×1.0 | A4-70 316SS | Trek / Specialized |
| Seat Stay Pivot | PVT-SS-02 | Reduced-Head M6×1.0 | A4-70 316SS | Santa Cruz / Giant / Yeti |
| Shock Mount (Eyelet) | PVT-SM-01 | Reduced-Head M8×1.25 | A4-70 316SS | Fox / RockShox / DVO / Ohlins |
| Shock Mount (Clevis) | PVT-SM-02 | Shoulder Bolt M6×1.0 | A4-70 316SS | Fox / RockShox / DVO |
| Bearing Retainer | PVT-BR-01 | Flat-Head M3–M5 | A4-70 316SS | Universal |
| Linkage Nut | PVT-LN-01 | Flange Lock Nut M8×1.0–1.25 | A4-70 316SS | Universal |
Three Customer Profiles, One Partner
Solutions tailored to the distinct needs of frame factories, assembly brands, and service centers
Frame Manufacturer
You weld the frame. We deliver every pivot fastener pre-packaged per frame — one part number, one carton, zero sorting.
- Complete frame BOM covered
- Pre-inserts + pivot bolts + retainers
- Bulk pricing from 10,000 pcs/year
Assembly Brand / OEM
Your brand name on the down tube. Our pivot hardware inside the frame — torque-specified, QC-certified, batch-traceable.
- Custom labeling & branding
- Private-label packaging
- Per-bike master pack delivery
Service & Aftermarket
Replacement pivot kits for shops and direct-to-consumer. Includes old-model compatibility and torque reference cards.
- Retail-ready packaging
- Old & new model cross-compatible
- Torque card & Loctite included
Supply Chain Advantages
Why global MTB brands choose PremFixer for pivot fastener sourcing
Low MOQ, Fast Prototyping
Start from 100 pcs per SKU for brand-specific pivot bolt specs. No minimum on standard DIN/ISO parts. CAD-to-part prototype delivery within 10 working days.
Rapid Turnaround
15–30 day mass production lead time after PO and deposit. Same-day shipment for standard DIN/ISO stock items. Rush orders accommodated.
Global Palletized Delivery
Warehouse-ready pallet delivery for efficient receiving. Real-time tracking on every shipment. Custom labeling & barcode-ready packaging.
Full Compliance Package
Mill certificate traceable to heat number. Dimensional SPC report. Salt spray test report. Certificate of Conformance — all included with every shipment.
How We Work Together
A compact 4-stage process from pivot BOM review to torque-specified production supply.
Requirements Review
Send frame drawings, pivot locations, bearing interfaces, torque targets, or sample bolts for engineering review.
Pivot BOM Proposal
Receive pivot fastener recommendations, material and coating selection, torque matrix notes, and quotation feedback within 48 hours.
Output: pivot fastener BOM and quote path.
Samples & Fit Check
Sample production supports frame-fit review, bearing clearance checks, and assembly torque confirmation.
Commercial Confirmation
After sample approval, confirm PO details, deposit, final torque notes, and production schedule.
Output: approved pivot sample set and locked schedule.
Mass Production
Production follows the approved pivot BOM, drawing tolerances, thread specification, coating, and torque requirement.
QC Release
Dimensional, thread, coating, and salt spray checks are prepared before shipment according to order requirements.
Output: finished pivot batch with QC release.
Delivery
Palletized shipment with tracking and assembly-line-ready organization for pivot hardware kits.
Ongoing Support
Technical aftercare and reorder feedback within 48 hours help keep pivot service parts consistent.
Output: stable pivot hardware supply with technical aftercare.
Looking for a single supplier for your entire frame pivot BOM?
One purchase order covers every pivot fastener on your MTB or e-MTB frame — main pivot, rocker link, chain stay, shock mount, bearing retainers. All in A4-70 316SS. All torque-specified with MTB & e-MTB values.
Explore Related Solutions
Fastener systems that complement your full-suspension frame manufacturing
MTB Hardtail
Complete fastener BOM for hardtail MTB frames — headset, BB, brake, dropout hardware.
Anti-Loose Systems
Nord-Lock wedge-locking, pre-coated thread adhesives, nylon patch — for every pivot joint.
Aluminum Frame Systems
Thread inserts, weld-in bosses, anti-corrosion kits — the foundation every frame needs.
Frequently Asked Questions
Quick answers about our full-suspension pivot fastener solutions
Can you supply brand-specific pivot bolt kits for Trek, Specialized, Santa Cruz, etc.?
Yes. We maintain internal CAD libraries for major MTB brands including Trek, Specialized, Santa Cruz, Giant, Yeti, and Canyon. Send us your frame model/year, and we'll match our existing specs or engineer new ones from your CAD. MOQ from 100 pcs per unique SKU.
Do you provide separate torque specs for MTB and e-MTB versions of the same bolt?
Yes, every pivot bolt that applies to both platforms ships with dual torque values. e-MTB bolts carry higher torque to compensate for the additional 85–120 N·m of motor torque transmitted through the BB pivot area.
What material standards do your pivot bolts meet?
All PremFixer pivot hardware defaults to A4-70 316SS (ISO 3506) as our standard. We also offer 12.9-grade steel with Dacromet for DH/high-impact builds, and 17-4PH for premium custom applications. Every batch ships with mill certificate and dimensional report.
Ready to Simplify Your Pivot Fastener Supply Chain?
Send your frame BOM or sample bolts. We'll return a complete pivot fastener quote — with torque matrix — within 48 hours.