Condition New

Indoor Cycle Pop Pin / Pull Pin – Red & Black Adjustment Knob

M16 × 1.5 Thread | Available in 18mm, 20mm, 25mm & 27mm Pin Lengths

This M16 × 1.5 indoor cycle pop pin is designed for seat and handlebar adjustment systems found on commercial spin bikes, indoor cycles, and exercise bikes. The spring-loaded locking pin allows riders to quickly adjust seat height, handlebar height, and fore/aft positions while maintaining secure engagement during workouts.

Featuring a high-visibility red adjustment button, durable black housing, and commercial-grade construction, this replacement pull pin is ideal for fitness facilities, cycling studios, hotels, apartment gyms, and home fitness equipment.

This listing includes four pin length options, allowing you to select the correct size for your bike.

📐 Available Sizes

Common Dimensions

• Knob Diameter: 50mm (1.97")
• Thread Size: M16 × 1.5 Fine Pitch
• Pin Diameter: 8mm (5/16")
• Color: Black Housing with Red Adjustment Button

🚴 Compatible Indoor Cycle Brands

Commonly found on select models from:

• Schwinn Indoor Cycles
• Star Trac Spinner Series
• Keiser M3 / M3i (verify dimensions)
• Stages Indoor Cycling Bikes
• Spirit Fitness Indoor Cycles
• BH Fitness Indoor Cycles
• SportsArt Indoor Cycles
• Endurance by Body-Solid Cycles
• XTERRA Fitness Bikes
• Sunny Health & Fitness Commercial Models
• Various OEM spin bikes and indoor cycles

🔩 Key Features

Spring-Loaded Pop Pin Design

Provides quick seat and handlebar adjustments while maintaining secure locking engagement.

M16 × 1.5 Fine Thread

Precision-machined thread provides secure installation and smooth operation.

High-Visibility Red Release Button

Makes adjustments easier and faster in commercial gym environments.

Commercial Grade Construction

Built for repeated daily use in cycling studios and fitness facilities.

Multiple Length Options

Available in four pin lengths to fit a wide variety of indoor cycle adjustment systems.

🚴 Common Applications

• Seat height adjustment
• Seat fore/aft positioning
• Handlebar height adjustment
• Handlebar fore/aft positioning
• Indoor cycling bike positioning systems
• Commercial spin bike maintenance

📏 How to Choose the Correct Size

Step 1 – Verify Thread Size

Confirm your bike uses:

M16 × 1.5 Thread

Step 2 – Measure Pin Extension Length

Available options:

• 18mm (0.71")
• 20mm (0.79")
• 25mm (0.98")
• 27mm (1.06")

Step 3 – Verify Pin Diameter

Confirm:

8mm (5/16") locking pin diameter

✅ Benefits

• Fast seat and handlebar adjustments
• Secure positive locking engagement
• High-visibility red release button
• Commercial-grade durability
• Multiple size options available
• 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 (18mm, 20mm, 25mm, or 27mm)

Many indoor cycles use similar adjustment knobs, but exact dimensions are required for proper fit and safe operation.

💡 Why It Matters

A properly functioning pop pin is critical for rider comfort and safety. Secure seat and handlebar positioning improves bike stability, rider ergonomics, and overall equipment performance while reducing wear on adjustment assemblies.

• indoor Cycle Parts | Pop Pins | Knobs | Levers | Resistance