TVS Ronin 225 Rear Brake Master Cylinder Assembly – NF110970

TVS Ronin 225 Rear Brake Master Cylinder Assembly – NF110970

TVS rear hydraulic brake master cylinder for compatible Ronin 225 motorcycles, including documented single-channel and dual-channel ABS configurations.

The TVS NF110970 Rear Master Cylinder Assembly is the component linked to the foot-operated rear brake control. When the rider applies the rear brake pedal, the master cylinder helps generate hydraulic pressure for the rear disc-brake circuit. It is a model-specific replacement for the matching original part when the rear master cylinder has been diagnosed as defective.

Read before ordering: This product is one rear master cylinder assembly, not a complete rear brake system. The separate pedal, hydraulic hose, reservoir service kit, caliper and ABS hydraulic unit are not automatically included. The exact subcomponents attached to the packaged assembly must be checked against the physical retail unit.

Exact TVS part identification and technical details

Compatible TVS Ronin 225 configurations

Important: The Ronin model name alone does not guarantee compatibility. Different production years, braking generations and motorcycle variants can have different hydraulic lines or fittings. The buyer should compare the full manufacturer part number and original assembly before purchasing. The product is a rear master cylinder irrespective of whether the motorcycle has single- or dual-channel ABS; it is not the ABS hydraulic module.

How the rear brake master cylinder works

The rider operates the rear brake using the right foot pedal. In the hydraulic circuit, the master-cylinder piston moves to create brake-fluid pressure, which is transmitted through the rear brake line and associated hydraulic components to the rear caliper. The caliper then acts on the rear brake disc using its brake pads.

This assembly must be correctly matched to the motorcycle. Mounting spacing, pushrod/pedal connection, outlet fitting, fluid circuit and ABS arrangement all matter. A master cylinder should never be selected solely because another model uses a similar-looking unit.

What you receive — contents and exclusions

1 × TVS Rear Brake Master Cylinder Assembly, part number NF110970.

The following TVS references are separate items in the parts catalogue. They are not promised as additional, loose components within this listing:

• NF110960 — complete rear brake pedal
• N9322270 — reservoir service kit
• NF321210 — master-cylinder major repair kit
• NF111430 — rear disc-brake hose in relevant Ronin assembly
• NF111000 — rear-master-cylinder hydraulic tube in specified dual-channel ABS routing
• NF160900 — rear brake stop-lamp switch
• Rear caliper, ABS hydraulic unit (HECU), brake pads, disc, brake fluid and installation labour.

Pack confirmation: TVS uses the word “assembly”, but the catalogue alone does not prove precisely which reservoir, hose, linkage or banjo fittings are physically preattached to your boxed NF110970. Inspect the actual product/packaging before publishing a component-by-component inclusion claim. This distinction is important for customer expectations and installation planning.

Related TVS Ronin rear-brake part numbers — do not confuse

When might a rear master cylinder need replacement?

A qualified technician may inspect the rear master cylinder if the rear brake pedal loses hydraulic pressure, pressure does not build or hold correctly, a fluid leak is present at the master-cylinder area, or internal seal failure is suspected. The appropriate repair depends on the actual fault and the condition of the complete brake system.

These symptoms are not proof that NF110970 is defective. Similar complaints can come from trapped air, low or contaminated brake fluid, a damaged brake hose, a leaking caliper, worn brake pads, a faulty rear brake pedal mechanism or faults elsewhere in the ABS-equipped hydraulic circuit.

• Inspect for fluid leaks at the master cylinder, outlet and relevant brake-line connections.
• Check the rear brake pedal and linkage for free movement and correct return.
• Inspect the reservoir, associated lines, rear caliper and seals for signs of damage.
• Investigate an unusually soft or sinking brake pedal with the motorcycle stationary and secured.
• Confirm the replacement is needed before ordering; do not use a master cylinder to mask other brake faults.

Before ordering — five important checks

• Exact SKU: Verify NF110970 from the old part, current TVS catalogue or dealer VIN lookup.
• Brake position: You need the rear hydraulic master cylinder, not the front brake lever assembly.
• Variant and year: Confirm the specific Ronin 225 and its single-/dual-channel ABS configuration.
• Physical match: Compare mounting lugs, pedal linkage, hydraulic outlet and reservoir/hose connections.
• Package contents: Check whether your repair also requires a separate reservoir kit, rear hose, seals or fittings.

If an earlier repair has modified the brake circuit or the motorcycle uses non-original hardware, obtain technician confirmation before ordering.

Installation and brake safety

Professional installation by a qualified motorcycle technician is strongly recommended. The rear brake is a safety-critical hydraulic system. The technician should compare the replacement to the original unit, inspect the connecting components, use the vehicle-specific TVS service manual, follow the manufacturer’s fitting and torque specifications, and service/bleed the braking system as required by that procedure.

After fitting, all hydraulic connections and the brake-pedal return should be checked; the brake should be inspected for leaks and proper pressure before the motorcycle is used. If the motorcycle has ABS, follow the applicable service instructions, including any required ABS bleeding or diagnostic procedures. No fixed brake-fluid grade, torque setting, bore diameter or bleeding shortcut is supplied here because these vary by application and have not been verified for this retail unit.

Do not ride if the rear brake is leaking, weak, binding, unable to build pressure or otherwise functioning abnormally.

Care, handling and receiving checklist

Store the hydraulic component clean and protected from dust, moisture and impact. Keep hydraulic openings protected until installation, and inspect seals and connector surfaces before use. Do not allow oil, dirt or incompatible fluids to enter the brake circuit.

At delivery, inspect the TVS label and complete SKU, outer condition, ports and any attached fittings. Make the required unboxing record before installation and retain packaging until the compatibility and supplied contents have been checked. Do not connect or install a mismatched hydraulic component.

Frequently asked questions about NF110970

1. What is TVS NF110970?
NF110970 is the TVS catalogue reference for the rear hydraulic brake master cylinder assembly used in compatible Ronin 225 motorcycles.

2. Is this the front or rear brake master cylinder?
Rear only. It works with the foot-operated rear brake; it is not the front handlebar brake master cylinder.

3. Which motorcycle is it for?
The documented application is TVS Ronin 225. Verify the exact model year and original part number before purchase.

4. Does it fit Ronin 225 single-channel ABS?
The 2025 Ronin catalogue lists NF110970 in a model family covering 1-channel ABS configurations. Verify the exact brake assembly.

5. Does it fit Ronin 225 dual-channel ABS?
The 2025 parts catalogue also lists the reference for 2-channel ABS configurations. Check the original SKU and connections.

6. Does it fit Ronin Base / SS?
Earlier catalogue references place NF110970 in the shared Ronin rear master-cylinder assembly. Confirm the original unit.

7. Does it fit Ronin Base+ / DS?
It appears in the earlier model-family catalogue; verify the exact vehicle version and original component.

8. Does it fit Ronin Mid / TD?
The part is documented in the relevant Ronin catalogue. Confirm mounting and hydraulic fittings.

9. Does it fit the latest OBD variant?
Do not assume universal compatibility from the model name. Check the latest VIN-specific TVS parts catalogue.

10. Does it fit Apache RTR 160/200?
No Apache compatibility has been established for this exact TVS part number.

11. Can I use a visually similar rear master cylinder from another bike?
Not safely without validated interchangeability. Bore, stroke, linkage and hydraulic fittings may differ.

12. Is NF110970 the same as NF110960?
No. NF110960 is the rear brake pedal complete, while NF110970 is the hydraulic master cylinder.

13. Is the brake pedal supplied?
The pedal is separately catalogued and is not promised as part of this listing.

14. Is the reservoir included?
The catalogue separately identifies reservoir kit N9322270. The exact fittings physically attached to NF110970 must be verified from the boxed unit.

15. Does it include the rear brake hose?
NF111430 is separately catalogued, and an additional rear hydraulic-tube reference applies to certain ABS routes. A separate hose is not promised.

16. Does it include brake fluid?
No separately packaged brake fluid is promised. Use only the fluid prescribed in the applicable TVS service manual.

17. Does it include the brake caliper?
No. The rear caliper is a different component.

18. Is the ABS hydraulic unit included?
No. The master cylinder is not the ABS HECU/module.

19. Is the repair kit NF321210 the same product?
No. NF321210 is separately catalogued as a master-cylinder major repair kit.

20. Will this fix a spongy rear brake pedal?
Only when master-cylinder failure is diagnosed. Air, leaks or other hydraulic faults can produce similar symptoms.

21. Will it fix a brake-fluid leak?
Only if the leak is caused by the original master cylinder and the rest of the hydraulic system is serviceable.

22. Will it fix an ABS warning light?
Not necessarily. ABS warnings require diagnosis and may involve sensors, wiring, ABS hydraulics or another fault.

23. What is the piston bore diameter?
A verified bore diameter for this exact unit has not been established from the cited catalogue. Do not order by an assumed size.

24. Does it come prefilled with brake fluid?
No prefilled condition is promised. The installer must follow the manufacturer’s bleeding and fluid procedure.

25. Can it be installed without a mechanic?
Professional installation is strongly recommended because an incorrectly installed master cylinder can cause rear-brake failure.

26. Is it suitable for front brake conversion?
No. This is a rear master cylinder for the matching original Ronin hydraulic layout.

27. How many units are supplied?
One NF110970 master cylinder assembly.

28. Are banjo bolts and copper washers included?
The parts catalogue separately identifies hydraulic fittings and washers. Their inclusion with the retail unit is not confirmed.

29. Is this a TVS OEM part number?
Yes. NF110970 appears in the manufacturer parts catalogue and TVS’s official online spare-parts store. Check physical packaging for genuine-stock verification.

30. How do I confirm fitment most reliably?
Use the motorcycle VIN in the current TVS parts catalogue, confirm NF110970 and compare the old unit’s mountings and connections.

31. What should I inspect when the parcel arrives?
Check the exact part number, seal condition, hydraulic-port cleanliness, overall condition, fittings and package contents before installation.

32. Does this include the rear brake-light switch?
The rear stop-lamp switch NF160900 is separately catalogued; it is not promised as an extra item in this product.

Search keywords and part-identification terms

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Final part number: NF110970   |   Position: Rear   |   Vehicle: TVS Ronin 225   |   Pack: 1 master cylinder assembly.