Keiser M3i Stretch Pads PN-550877 – New Pair
📍 Lancaster, PA 17601 | 🚚 Ships Fast
OEM Stretch Pads for Keiser M3i Indoor Cycles
Brand new pair of Keiser M3i Stretch Pads PN-550877 for sale. These are genuine OEM replacement stretch pads designed specifically for the Keiser M3i indoor cycle. Replace worn, torn, or damaged stretch pads to restore your bike to like-new condition and maintain proper pedal alignment.
The stretch pads are located on the pedal crank arms and provide smooth, quiet operation by maintaining proper tension and alignment. Over time, they wear down from heavy use in studios and home gyms. This new pair includes both left and right stretch pads ready to install.
Why Replace Your M3i Stretch Pads?
- ✔ Genuine Keiser Part #550877: OEM quality ensures perfect fit and function on all M3i models.
- ✔ Restores Smooth Operation: Eliminates clicking, squeaking, or loose pedal feel from worn pads.
- ✔ Prevents Damage: Worn stretch pads can cause crank arm wear and costly repairs if not replaced.
- ✔ Easy Installation: Direct replacement — no modifications needed. Install in minutes with basic tools.
- ✔ New Pair Included: You receive both left and right pads to replace both sides at once.
- ✔ Lancaster PA Location: In stock and ships fast nationwide from 17601.
Product Details & Compatibility
Part Information
| Part Number | 550877 |
| Part Name | Stretch Pads |
| Quantity | 1 Pair (Left + Right) |
| Condition | Brand New |
| Manufacturer | Keiser Corporation |
| Type | Genuine OEM Replacement Part |
Compatibility
Fits all Keiser M3i Indoor Cycle models. Not compatible with M3, M3+, or M5 bikes. Verify your bike model before ordering — look for "M3i" on the frame or console.
When to Replace Stretch Pads
Signs You Need New Stretch Pads:
- Clicking or knocking sound from pedals during use
- Pedals feel loose or have excessive play
- Visible wear, cracking, or deformation of existing pads
- Pedal alignment feels off or uneven
- Routine maintenance — Keiser recommends inspection every 6 months in commercial settings
Pro Tip: Always replace both left and right stretch pads together for balanced pedal feel and even wear. This listing includes a complete pair.
Shipping & Installation
Shipping Information
📦 Fast Shipping: In stock and ships same or next business day from Lancaster, PA 17601.
📍 Local Pickup: Available in Lancaster, Pennsylvania to save on shipping.
Installation
Direct replacement part. Installation requires basic hand tools and takes approximately 10-15 minutes per side. Remove pedal, replace stretch pad, reinstall pedal. Refer to your Keiser M3i service manual or contact us for installation guidance.
Frequently Asked Questions
Will these fit my Keiser M3 or M3+ bike?
No. PN-550877 is specifically for the M3i model only. The M3 and M3+ use different stretch pads. Check your bike frame for the "M3i" label before ordering.
How often should stretch pads be replaced?
Keiser recommends inspecting every 6 months in commercial use. Home users typically replace every 2-3 years depending on usage. Replace immediately if you hear clicking or feel pedal play.
Are these genuine Keiser parts?
Yes. This is genuine OEM Keiser part #550877, not aftermarket. Using genuine parts ensures proper fit, function, and maintains your bike’s warranty.
Do you sell other Keiser M3i parts?
Yes. We stock common M3i replacement parts including pedals, seats, handlebars, and drive belts. View all Keiser parts or contact us with your part number.
Shipping & Pickup from Lancaster, PA
📍 Lancaster, PA 17601 | In Stock
✓ Local pickup available in Lancaster, Pennsylvania.
🚚 Fast Shipping: Ships same/next business day via USPS or UPS Ground. Tracking provided.
Questions about fit or installation? Contact us before ordering and we’ll verify compatibility with your serial number.
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