Round Tail 21.5mm Brake Pad

• The Round Tail 21.5mm Brake Pad supports:
  • Dragon models (typically late-2024 onwards) which have the 3rd generation (yellow) calliper across models of:
    • GTS.
    • GTR.
    • GTS V2.
    • GTR V2.
    • Cyclone (and the single-motor (non-pro)
      • For gen 2 callipers (red, with heatsink fins) use Round Slotted Large Tail 22.5mm.
      • For gen 1 callipers (red, no heatsink fins) use Round Tail 18.5mm.
  • Segway Ninebot F Series (F20, F25, F30, F40).
  • Segway Ninebot ZT3 Pro Front (rear uses Hook pad).
  • VSETT pre early-2024 models of 9/9+. (Later models adopt 18.5mm pad, see notes below).
  • Zero 9 Front and other ODM's such as Dragon X9.
  • Zero 10 Front and other ODM's (Rear has this calliper with Crown Brake Pad).
  • Teverun Blade Mini (non-Pro) & Kugoo M4.
• Easily identified as having a complete round plate with tail that is stubby (small lug / notch) and to lesser extent commonly with eclipse at opposite end of tail.
• Dimensions 24.5 (h) x 21.5mm (w).
  

• Supplied as a set (pair) two pads, one for each side. Order two sets for both front and rear wheels.
• Available in various compounds. To further understand merits of each compound, refer to the Brake Pad Reference Page.

Notes:

1. Image showing "Dragon 3rd generation calliper" observed on later model Dragon Cyclone (non-Pro) 10" Single motor DRA24CYCLONE0328. On GTR/GTS (including V2) calliper is red in colour.
   
   
2. For VSETT 9/9+ models there are two generations of pads:
   • This pad, the Round Tail 21.5mm, generally suits older builds prior to early 2024. It has a larger diameter with short stubby tail, typically with two round indentations on rear. Shown below (upper) with measure 21.25mm.
   • The 2nd generation pad, Round Tail 18.5mm, introduced early 2024. It has a smaller diameter with longer tail. typically with four round indentations on rear. Shown below (lower) with measure 18.51mm. Image courtesy MACURY Store.
     
3. Images below show the red livery calliper on the front of models Zero 9 and 10. The Zero 9 rear has a drum brake. Zero 10 rear has this calliper with Crown Brake Pad.
   
   
4. Images showing the front calliper on Ninebot Segway ZT3 Pro.