• Red NAC Chroma 12 T25 disc brake rotor bolt, M5 button head
  • Purple NAC Chroma 12 T25 disc brake rotor bolt, M5 button head
  • NAC Chroma 12 disc brake rotor bolts in red, blue, purple and gold
  • Blue NAC Chroma 12 T25 disc brake rotor bolt, M5 button head
  • Gold NAC Chroma 12 T25 disc brake rotor bolt, M5 button head
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Chroma 12 Disc Brake Rotor Bolt Kit for MTBs and Road Bikes

Chroma 12 Disc Brake Rotor Bolt Kit for MTBs and Road Bikes

Rs. 599.00
Rs. 599.00
Sale Sold out
Tax included.
Colour

Looking for replacement disc brake rotor bolts? The NAC Chroma 12 is a twelve-piece set of T25 rotor bolts in M5 × 10mm — the standard size for 6-bolt disc rotors — with enough in the pack to do both wheels. Rotor bolts are the fastener most likely to round out on a home workshop job: they sit torqued tight against a hot rotor, they seize in place over a monsoon, and a worn hex key turns the head to mush. These use a T25 Torx drive, which bites deeper into the head and resists cam-out far better than a hex socket of the same size.

Best For

Riders replacing rounded, rusted, or mismatched rotor bolts, and anyone fitting new rotors who wants the hardware to match the rest of the build. Twelve bolts cover two 6-bolt rotors, so one kit does a complete bike front and rear. If your hubs are Centerlock — where the rotor is held by a splined lockring rather than bolts — this kit isn't the right fit.

Key Features

  • Twelve bolts, two rotors — a complete bike front and rear in one pack, rather than buying twice.
  • T25 Torx drive — six flat lobes grip the head far better than a hex socket, so the tool is much less likely to slip and round the bolt when you're backing out one that has seized.
  • Threadlock pre-applied — every bolt carries a threadlock patch from the factory, so it resists backing out under braking vibration without you adding anything on first fitting.
  • Standard M5 × 10mm fitment — the size used by 6-bolt rotors across every major brand.
  • Alloy steel — rotor bolts carry braking load through constant heat cycling, and alloy steel is the standard material for the job because of its tensile strength.
  • Four colours — red, blue, purple, and gold, so your rotor hardware can match your frame decals, your hubs, or the rest of your bolt kit.
  • Direct replacement — swaps straight in with a T25 key, no adapters and nothing else to change.

What's in the Box

  • 12 × NAC Chroma T25 disc brake rotor bolts in your chosen colour

Specifications

  • Quantity: 12 bolts (6 per rotor, covers two rotors)
  • Size: M5 × 10mm
  • Drive: T25 Torx
  • Material: Alloy steel
  • Threadlock: Patch pre-applied to every bolt
  • Fitment: 6-bolt disc rotors only — not Centerlock
  • Colours: Red, Blue, Purple, Gold

Installation

Rotor bolts work loose more readily than almost any other fastener on a bike, because braking puts them through constant heat cycling and vibration. Chroma 12 arrives with a threadlock patch already on each bolt, so don't add liquid threadlock on first fitting — the patch does that job, and extra compound over the top can stop the bolt seating properly. Clean the threads in the hub, fit all six loosely before tightening any of them, then work round the rotor in a star pattern, opposite bolt to opposite bolt, bringing them up evenly over two or three passes so the rotor seats flat against the hub flange. Finish to the torque figure specified by your rotor or hub manufacturer — most fall between 2 and 6 Nm, lower than riders expect — and check them again after your first ride or two.

Twelve bolts, two rotors, one bike. Free shipping on orders above ₹899.

In case you have any queries, reach out to us on WhatsApp at +91 99875 97589

Shipping, Returns and Warranty

Shipping

Order is usually dispatched in 1-2 days of placing the order, Delivery can take between 3-7 days depending on the delivery location. You can easily track the order by viewing the link that is shared with you after placing the order.

Warranty

Please note that this product is a consumable item and is not eligible for warranty coverage. To learn more you can view our warranty policy.

Returns

We have a 15 day return policy, which means you have 15 days from the date of delivery of your order to request for a return. To be eligible for a return, your item must be in the same condition as you received it. The product must be unused with no damage, tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at support@thenacstore.com or +91 99875 97589. Our Team will then review the images and videos sent by you and once approved, we will arrange for a return, as well as send instructions on how to pack your product and also the date of the pickup. Items sent back to us without first requesting a return will not be accepted. After receiving the product at our warehouse, we will inspect the product. On approval of inspection, we aim to initiate the refund between 3 to 7 business days. 

Damages and issues: Please inspect your order upon reception and contact us immediately at support@thenacstore.com if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue.

Exceptions / non-returnable items: Custom products such as special orders or personalized items are not eligible for a return. We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about any of these specific products. 

Refunds: Once we’ve received and inspected your return, we shall notify you and let you know if the product was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please note it may take some time for your bank to process and reflect the refund back into your bank account

Have any queries? Our Team is happy to assist you. Write to us at support@thenacstore.com or WhatsApp us at +91 99875 97589

To learn more you can view our return policy

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Frequently Asked Questions

Will these fit my bike?
They fit 6-bolt disc rotors, which is the most common mounting standard on MTBs and on gravel and road bikes with disc brakes. Look at your rotor: if it bolts to the hub through six holes arranged in a circle, these are a direct replacement. If the rotor slides onto a splined hub and is held by a single threaded lockring, that is Centerlock and these won't fit it.
How many rotors does one pack cover?
Two. A 6-bolt rotor takes six bolts, so twelve does your front and rear together — one kit per bike rather than one per wheel.
Do I need to add threadlock?
Not on first fitting. Each bolt comes with a threadlock patch already applied, and adding liquid compound over the top can interfere with it seating correctly. The patch does lose its grip after several removals, so if a bolt has been in and out a few times and no longer feels like it is biting on the way in, add a medium-strength liquid threadlock or fit a fresh bolt. What you should never do is run rotor bolts dry with nothing at all — one that backs out can drop into the caliper and take your braking with it.
Why T25 instead of an Allen key?
Because rotor bolts are the ones that get rounded. A Torx head spreads the load across six flat lobes, where a hex socket pushes against six corners that wear and slip. On a bolt that has been torqued down and then baked by a season of braking, that difference is what separates a two-minute job from drilling out a seized head.
Is alloy steel better than stainless here?
For this fastener, yes. Rotor bolts need tensile strength above all else — they clamp a braking surface that heats, cools, and vibrates constantly — and alloy steel is what the job calls for. It is the same reason the bolts that came on your bike are steel rather than stainless.
Can I reuse my old rotor bolts?
You can, but they are a cheap part doing a critical job. If the heads show any rounding, if the threadlock patch is spent, or if there is corrosion in the threads, replace them rather than torquing a worn bolt back into a hub.
Do these work on my brake calipers too?
No. Caliper mounting bolts are a different length and often a different size, and they are torqued to a different figure. These are sized specifically for 6-bolt rotors.