SRAM Centerline 2 Piece Rounded 6 Bolt - Ti Bolts
Centerline 2 Piece Rounded 6 Bolt - Ti Bolts
Centerline 2 Piece Rounded 6 Bolt - Ti Bolts
SRAM

SRAM Centerline 2 Piece Rounded 6 Bolt - Ti Bolts

$85.00
In Stock

SRAM CenterLine X two-piece 6-bolt rotor pairs a steel braking track with an alloy carrier and titanium bolts for lighter weight, quieter braking and reliable modulation.

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Available Options

Option Price Availability
SRAM, Centerline 2 Piece Rounded, Disc brake rotor, ISO 6B, 140mm $85.00 In Stock
SRAM, Centerline 2 Piece Rounded, Disc brake rotor, ISO 6B, 160mm $85.00 In Stock
SRAM, Centerline 2 Piece Rounded, Disc brake rotor, ISO 6B, 180mm $90.00 In Stock

Product Details

Overview — CenterLine X two-piece rotor technology

SRAM's CenterLine X 2-piece 6-bolt rotor (RT-CLN-X-A2) blends a precision-stamped steel braking track with a CNC-machined alloy carrier to shave grams while keeping the smooth, quiet braking CenterLine is known for. The two-piece construction reduces thermal stress and improves heat transfer away from the braking surface, helping limit warping and fade on long descents. This variant ships with titanium rotor bolts for corrosion resistance and lower rotating mass, and features a rounded outer edge for improved rider safety. Available in 140mm, 160mm and 180mm diameters with ISO 6-bolt hub compatibility, it's a versatile upgrade for most mountain and trail builds.

Key features and benefits

Steel braking track: Hardened stainless steel provides predictable bite, consistent pad wear and high heat tolerance for repeated heavy braking. Works with both metal and resin pads for flexible tuning between power and modulation. Alloy carrier & titanium hardware: The aluminum carrier cuts weight and improves thermal dispersion; titanium bolts reduce mass at the wheel periphery and resist seizing. The rounded edge reduces sharpness around the rotor perimeter — a simple safety improvement when handling wheels or setting bikes down.

Fit, compatibility and installation

The CenterLine X is a 6-bolt ISO rotor (ISO 6B) and fits any hub using a 6-bolt mounting pattern. Choose from 140mm, 160mm or 180mm diameters depending on caliper clearance and desired stopping power. This rotor accepts either metal (sintered) or resin (organic) brake pads — resin pads give quieter initial bite while metal pads offer longer life and higher fade resistance under heavy use. When installing, follow torque specs for titanium bolts (typically 3–5 Nm depending on manufacturer guidance) and tighten in a star pattern to prevent uneven clamping. Check rotor runout with a truing gauge or by spinning the wheel slowly; small adjustments to the caliper bracket or rotor bolts will usually align the system without needing replacement.

Who this rotor is for

Perfect for mountain and trail riders who want a lighter, more refined rotor without sacrificing the reliability of a steel braking surface. If you race cross-country, ride technical singletrack, or want a quieter, more consistent braking feel on long descents, the CenterLine X is a smart, cost-effective upgrade. Also suited for builders putting together lighter wheelsets or riders prioritizing reduced rotating mass and corrosion resistance — the titanium bolts and alloy carrier make a tangible difference at the rim that you can feel in acceleration and handling.

Key Features

  • ✓ Two-piece design: alloy carrier with stainless steel braking track
  • ✓ Includes titanium rotor bolts for lower weight and corrosion resistance
  • ✓ Rounded outer edge improves safety when handling wheels
  • ✓ Works with metal (sintered) or resin (organic) brake pads
  • ✓ Available in 140mm, 160mm and 180mm sizes for tuneable stopping power
  • ✓ ISO 6-bolt mounting fits standard 6-bolt hubs and adapters

Specifications

Disc Pad Type Metal or Resin
Disc Diameter 140mm
Disc Material Steel
Disc Technology Centerline
Hardware Yes
Hub Compatibility ISO 6B

Product Identifiers

Vendor Item # 00.5018.037.017
UPC 710845805554

Frequently Asked Questions

What torque should I use for the titanium rotor bolts?

SRAM titanium rotor bolts should generally be tightened in a star pattern to about 3–5 Nm depending on bolt size and frame/hub manufacturer guidance. Use a calibrated torque wrench and re-check after the first ride to ensure bolts remain secure.

Can I use resin pads with this rotor?

Yes. The CenterLine X rotor is compatible with both resin (organic) and metal (sintered) pads. Resin pads are quieter and offer better initial bite, while metal pads give greater longevity and higher fade resistance on sustained descents.

How do I select the right rotor diameter (140/160/180mm)?

Choose rotor size based on bike geometry, caliper clearance and braking needs. 140mm suits light XC and lower-speed trail use; 160mm is a versatile all-mountain choice; 180mm adds heat capacity and stopping power for heavier riders and aggressive descending.

Is this rotor compatible with centerlock hubs?

No — the CenterLine X listed here is a 6-bolt ISO rotor (ISO 6B). Centerlock hubs require a different rotor interface; adapters are available but using a native 6-bolt rotor on a 6-bolt hub is the recommended approach.

How do I bed in a new CenterLine rotor?

Bed-in by accelerating to moderate speed and performing 8–12 progressive stops from moderate speed to a near halt, allowing a few seconds between stops to cool. This deposits a thin, even layer of pad material on the rotor and improves initial bite and modulation.

What maintenance will prolong rotor life?

Keep rotors clean from oil and grease, inspect for scoring or significant runout, and replace when thickness reaches the manufacturer's minimum spec. Avoid aggressive cleaning solutions; isopropyl alcohol and a clean rag work well for routine maintenance.

Buying Guide

When choosing a rotor, balance stopping power, heat capacity and weight. Smaller rotors (140mm) save weight and suit XC/light trail riding; mid-size 160mm is a versatile all-mountain choice; 180mm is best for heavier riders or aggressive descending where fade resistance matters. Consider the total system: larger rotors may require longer hose lengths or caliper adapters. Material and construction matter — two-piece rotors like the CenterLine X combine a steel braking track for consistent wear with an alloy carrier to reduce weight and improve heat dissipation. If you want quieter braking and reduced warping without giving up durability, a two-piece rotor with quality hardware (like titanium bolts) is an excellent choice.

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