Description
Brake Caliper Rubber Kit (For Bleed Nipple & Shaft Mount Pins) – Various Hyosung GT & GTR & GV Models
These Brake Caliper Rubber Kits are essential for Hyosung owners looking to service their silver TCTC branded brake calipers. Fresh rubbers protect your calipers from dirt, moisture, and wear — helping prolong the life and performance of your brakes.
| Bleed Nipple Dust Cover Covers the bleed nipple hole from dust and weather, preventing premature wear. |
Caliper Mounting Shaft Insulation Rubber shaft boots protect the caliper pins from dirt and debris ingress. |
Longer Brake Service Life Replacing worn rubbers helps prevent dirt entering caliper fixings, extending brake component life and performance. |
⚠ NOTE! = YOU WILL GET ONE BOX FOR ONE CALIPER ONLY.
If you need more boxes, please add accordingly at checkout (e.g. 2 boxes = 2 calipers).
⚠ NOTE! = SEALS FOR PISTONS ARE NOT INCLUDED.
Please browse the BRAKE PISTONS KITS in our shop.
🚚 UK Shipping Info: 2-4 WORKING DAYS DELIVERY (via RoyalMail)
✈ We ship worldwide — contact us for a fast international shipping quote.
| 🛠 Fitting Instructions: | None. Simply replace the old rubber parts with the new kit. For detailed guides, check the forum or the owners manuals. |
🏍 Model fitment list
Please check your bike before ordering ⚠
| GT125R & GT125 Naked | Carb models only, 2003 to 2019. Fits front or rear calipers with silver TCTC branded calipers. |
| GT250R & GT250 Naked | All carb & EFI models, 2003 to 2019. Fits front (left/right) or rear calipers with silver TCTC branded calipers. |
| GV250 & GV125 | Fits front caliper only, 2005 to 2019. GV250 Carb & EFI, GV125 Carb only. ⚠ TCTC Brand Calipers Only! |
| GT650 Naked | ⚠ SILVER 2-Pot TCTC Brand Calipers Only! ⚠ Check your bike has TCTC logo calipers. Older 650 models only. |
| GV650 | ⚠ SILVER 2-Pot TCTC Brand Calipers Only! ⚠ Check your bike has TCTC logo calipers. Older 650 models only. |
| GT650R | ⚠ SILVER 2-Pot TCTC Brand Calipers Only! ⚠ Check your bike has TCTC logo calipers. Older 650 models only. |
Reference OEM Part Number(s): 38740HM5401, 38740HD8500, 38740HD8550, 38740HG5100, 38740HG5120, 38740HP7600
📬 For any questions about this product, please email us or post in the forums!
✈ We also offer international shipping — contact us for a quick quote.
🛠 Install Tips:
- Before installation, clean the caliper shaft and bleed nipple areas to remove dirt and old grease.
- Inspect the brake caliper pins and nipples for any damage or excessive wear; replace if necessary.
- Lubricate the new rubber boots lightly with silicone grease to ease fitting and enhance sealing.
- After fitting, bleed your brakes to ensure proper brake fluid flow and pedal feel.
- If unsure about any step, visit our forums for detailed guides or ask for help.





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