Is Smoother Faster? All about GOOSYNN Ti-Fi Polymer Spokes
China Cycling
April 11, 2025
https://www.pandapodium.cc/goosynn-ti-fi/?ref=2 - The GOOSYNN wheel range.
The GOOSYNN wheels use polymer spokes to dampen vibrations. This means added comfort and less losses from vibrations through the bike and rider. In this video we take a deep dive into the spokes and what makes these wheels special.
A video about the wheels themselves: https://youtu.be/5L_5Xy1e55I
A written article about the wheels: https://www.pandapodium.cc/2025/04/10/are-stringy-spokes-faster-a-deep-dive-into-polymer-spokes-on-road-bikes/
00:00 Intro
01:45 Why Polymer spokes?
03:24 Ti-Fi Time
05:00 History Repeating
05:52 The Weight
06:28 Vibration Damping and Comfort
09:12 TiFi Vs Steel Vs Carbon
10:00 Difference in Weight
10:45 Difference in Stiffness
17:14 Is Smoother Faster?
18:05 Measuring Vibration Losses
21:25 Timed real-world Testing
25:05 Summary
Keywords: goosynn,goosyn,gosynn,polymer,spokes,berd,polylight,TiFi,Ti-Fi,China,Cycling,stringy,string,carbon,carbon spokes,steel,roval,wheels,wheel,test
Parts Mentioned
GOOSYNN Ti-Fi Titanium Fiber Spoke R50 PRO Wheelset
WheelsGOOSYNN Ti-Fi Titanium Fiber Spoke R50 PRO Wheelset
Created: March 24, 2026The reviewer analyzes the GOOSYNN Ti-Fi Titanium Fiber Spoke R50 PRO Wheelset, focusing on their polymer spokes designed to reduce vibrations while allowing higher tire pressures for lower rolling resistance. He conducts extensive testing comparing them to carbon and steel-spoked wheels, measuring weight, stiffness, vibration dampening, and real-world performance.
AI-Summary
Pros
- Lighter weight than carbon and steel spokes (60g lighter than carbon spokes, 321g lighter than steel spokes)
- Better vibration dampening than steel and carbon spokes (15% higher tire pressure possible vs. steel for same ride feel, 20 PSI higher vs. carbon)
- More comfortable ride with reduced road buzz
- Potentially faster due to reduced vibration power losses
- Easy installation compatible with standard carbon-spoke hubs
- Titanium fittings at both ends for durability and compatibility
- May help smooth out pedal stroke by acting like a spring through dead spots
Cons
- Lower lateral stiffness than steel and carbon spokes (27 N/mm vs. 56 N/mm for steel, 41 N/mm for carbon)
- Less torsional stiffness leading to less instant acceleration feel
- Potential for tire rubbing with tight clearances, especially for heavier riders
- Not ideal for sprinters or very heavy riders due to flex
- Some energy loss through constant torsioning/releasing of spokes (though minimal)
- Higher cost likely (implied but not explicitly stated)
MyBikeParts
GOOSYNN Ti-Fi Titanium Fiber Spoke R50 PRO Wheelset
