Item Condition: New
M16 Seat Pop Pin 5/16" Stationary Bike - Indoor Cycle - Cable Gym Knob Multi Color
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Item Description
Condition New
Indoor Cycle & Fitness Equipment Pull Pin / Pop Pin
M16 × 1.5 Thread | Multiple Pin Lengths | Multiple Color Options
This M16 × 1.5 pull pin / pop pin is designed for indoor cycles, spin bikes, selectorized strength equipment, cable machines, adjustable benches, and other commercial fitness equipment requiring secure adjustment and positioning.
The spring-loaded locking pin allows quick adjustment of seats, handlebars, back pads, footplates, support arms, and other movable components while maintaining secure engagement during use.
This listing includes multiple pin lengths and color options, allowing you to match your existing equipment or customize the appearance of your machine.
🎨 Available Colors
Choose from:
- Black
- Gray / Silver
- Green
- Orange
- Pink
- Red
- Yellow
- Purple
- Light Blue
- Dark Blue
(Color availability may vary by size.)
📐 Available Sizes
Thread Specifications
- Thread Size: M16 × 1.5 Fine Thread
- Pin Diameter: 8mm (5/16")
| Size Option | Pin Length |
|---|---|
| 18mm | 0.71" |
| 20mm | 0.79" |
| 25mm | 0.98" |
| 27mm | 1.06" |
Common Dimensions
- Knob Diameter: 37mm (1.46")
- Thread Size: M16 × 1.5
- Pin Diameter: 8mm (5/16")
- Spring Loaded Locking Pin
🚴 Compatible Indoor Cycle Brands
Commonly found on select models from:
- Schwinn IC Series
- Schwinn AC Performance Series
- Star Trac Spinner Series
- Keiser M3 / M3i (verify dimensions)
- Stages SC Series Bikes
- Spirit Fitness Indoor Cycles
- BH Fitness Indoor Cycles
- SportsArt Indoor Cycles
- Diamondback Fitness Bikes
- Endurance by Body-Solid Cycles
- Sunny Health & Fitness Commercial Models
- Echelon Commercial Bikes
- Various OEM indoor cycles and spin bikes
🏋️ Compatible Strength Equipment Applications
Can also be used on many:
- Functional trainers
- Cable crossover machines
- Adjustable benches
- Leg press machines
- Hack squat machines
- Lat pulldown machines
- Seated row machines
- Adjustable seats
- Adjustable back pads
- Footplate positioning systems
🔩 Key Features
Spring-Loaded Locking Mechanism
Provides positive engagement while allowing quick equipment adjustments.
M16 × 1.5 Fine Thread
Precision-machined thread ensures secure installation and smooth operation.
Multiple Color Options
Match OEM equipment colors or customize your machine's appearance.
Commercial Grade Construction
Built for daily use in gyms, studios, schools, hotels, rehabilitation clinics, and home fitness environments.
Multiple Length Options
Available in four common pin lengths for a wide range of equipment applications.
📏 How to Select the Correct Size
Step 1 – Verify Thread Size
Confirm your equipment uses:
M16 × 1.5 Fine Thread
Step 2 – Verify Pin Diameter
Confirm:
8mm (5/16") locking pin diameter
Step 3 – Measure Pin Length
Select:
- 18mm (0.71")
- 20mm (0.79")
- 25mm (0.98")
- 27mm (1.06")
Step 4 – Select Your Color
Choose the color that best matches your equipment.
✅ Benefits
- Quick and easy equipment adjustments
- Secure positive locking engagement
- Commercial-grade durability
- Multiple color options
- Multiple size options
- Suitable for indoor cycles and strength equipment
- Ideal replacement for worn or damaged adjustment pins
⚠️ Important Fitment Information
Please verify:
- M16 × 1.5 thread size
- 8mm (5/16") locking pin diameter
- Required pin length
- Available clearance around the knob
Many pop pins look similar but require exact dimensions for proper fit and safe operation.
💡 Why It Matters
A properly fitting pop pin ensures secure equipment positioning, smoother adjustments, safer workouts, and reduced wear on adjustment assemblies.
Let customers speak for us
from 1243 reviewsOrdered a part from Hydra Fitness Parts because the OEM part was back ordered for months. Part came in just a couple of days and had it installed by my service tech shortly after. My cross trainer works like new again. Definitely recommend.
Works great perfect fit would buy again
I moved my treadmill from one room to another. I happened to break off a rear foot to it during a difficult spot. It has been like this for 2 years. I decided to look for the part, it was hard to find. But then I found it and jow my treadmill is back together and ready to use
Ordered a part for our treadmill that got lost during a move. Perfect fit! Quick and easy shipping. Would highly recommend if you are looking for odd parts for your Horizon treadmill.
Hydra fit had the part I needed to repair my Bowflex treadmill for only $150. Bowflex techs were telling me I needed a new monitor control for $2,000 but I knew that was wrong because there was no electrical supply to the monitor so it couldn’t be that! Hydrogen gave me a couple ideas I I figured it out. NO thanks Bowflex, and thanks hydro fit.
Used power rods appear to be in good shape and delivery time was very good.
Parts no longer made from my treadmill. Hydra Fitness Exchange had a front roller that works great! Quiet, smooth, almost like new again! Timely shipping, good packaging, helpful website. Thanks!
Product fits perfect. Was able to verify that it would fit my model, and it arrived in a timely fashion. I would order from you guys in the future.
Spirit XE200 elliptical. Common problem of the wheels jumping off and galling the aluminum track rail covers. By the time I fixed the problem, my original track rail covers were too damaged. These were inexpensive and appear to be OEM. Only two bolts to swap them out. Excellent!
Ordered replacement part for my eliptical machine and fit tightly into place and the machine is working fine.
Upon receipt of the item, it would not charge. In working with them I was told to give charging one last shot. This time I pressed the start button multiple times and it started to charge. It synched with my bike. I thanked them for their patience in working out the problem.
The website was easy to use and the product arrived when promised.
We’ve been looking for this part for about 7 years. It fits perfectly. Shipping time was excellent.
Thank you so much!
Product was received on time and fit the description as advertised.
Great value for the price.
