SKU: 34164325565

Stoptech Rear Cross Drilled & Slotted Rotors - E30 318i/325i (258x10mm) (NLA)

Sale price$175.95 Regular price$195.50
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Stoptech Rear Cross Drilled & Slotted Rotors - E30 318i/325i (258x10mm) (NLA)Cross Drilled & Slotted Rotors Stoptech Cross Drilled & Slotted rotors are 1 piece, drilled and slotted, direct replacement discs for your factory brake system and stock calipers. They offer improved cooling as well as other advantages the competition doesn't offer. Innovations include e coating, double disc grinding, full machining, mill balancing and center split castings, as well as the availability of directional vanes, cryogenic treatment and the



Cross-Drilled & Slotted Rotors

Stoptech Cross-Drilled & Slotted rotors are 1-piece, drilled and slotted, direct replacement discs for your factory brake system and stock calipers. They offer improved cooling as well as other advantages the competition doesn't offer. Innovations include e-coating, double-disc grinding, full machining, mill balancing and center-split castings, as well as the availability of directional vanes, cryogenic treatment and the use of Power Alloy. Today, Stoptech Cross-Drilled & Slotted covers more than 2500 applications, all machined in Stoptech Cross-Drilled & Slotted California manufacturing center. Every Stoptech Cross-Drilled & Slotted rotor is a direct replacement for a factory brake rotor, allowing the retention of factory calipers in the system.

Most Stoptech Cross-Drilled & Slotted rotors match the original factory cooling vane design. In the most popular sports car and light truck applications, Stoptech Cross-Drilled & Slotted has improved the design by using directional (left- and right-handed) vanes to improve cooling. This represents a distinct upgrade from the original equipment rotors, which usually feature a straight vane or pillar vane design. The directional vane is a more efficient air pump. The resulting increase in airflow translates into greater resistance to brake fade and faster recovery from temperature spikes generated by aggressive braking maneuvers.

Every Stoptech Cross-Drilled & Slotted rotor is finished with a black e-coating on both sides of the hat, inside the cooling vanes and on the outside edge. E-coating is a superior electro-statically applied finish designed to withstand 400 hours of salt water exposure without rusting. This is especially important on both mounting faces of the hat where it touches the hub flange and back face of the wheel. Any accumulation of rust in these areas can lead to installed lateral runout issues.

Stoptech Cross-Drilled & Slotted rotors feature a double disc ground, taper free finish. Double disc grinding ensures parallelism, eliminates run out and provides near perfect disc thickness variation (DTV). Double disc grinding leaves a non-directional finish on the friction surface area for more effective pad and rotor break-in. This special finish also provides quieter and smoother stops.

Stoptech Cross-Drilled & Slotted rotors feature 100 percent fully machined finishes including rotor hats. This extra process provides better rotor balance and creates a cleaner, more finished looking component.

 

Stoptech Cross-Drilled & Slotted brake rotors are mill balanced to a tolerance of less than 2 oz-inch. This additional machining operation reduces feedback associated with rotor vibration and provides a smooth, confident application of braking force.

 

Center-split core castings provide proper heat transfer and thermal efficiency, resulting in superior braking power and safety.

 

Power Alloy metallurgy is another unique feature in many of Stoptech Cross-Drilled & Slotted's rotors. Quality and performance live inside the rotor too. Choosing the correct foundry partner and working to improve the metallurgy are all part of Stoptech Cross-Drilled & Slotted's continuous improvement process that helps to reach established targets for hardness and tensile strength. Many of Stoptech Cross-Drilled & Slotted's top-selling part numbers are cast using this Power Alloy iron specification, an enhancement in the carbon and molybdenum content of the iron. Carbon and molybdenum promote crack resistance and improve noise, vibration and harshness (NVH).

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34164325565

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4.2 ★★★★★
Based on 26 reviews
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Verified Purchase
Walter Beck
West Palm Beach, US
★★★★★ 5
Very warm, adjustable fit
Nice fit, just used on snowmobile in Wisconsin
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
J
Verified Purchase
Jrc
Bozeman, US
★★★★★ 1
Protectores de manubrio para bicicleta
Se les mete el agua no son buenos
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Reviewed in the United States on April 29, 2026
D
Dominic
San Leandro, US
★★★★★ 3
They're okay, but they're quite bulky.
I liked the design and overall application of these, but they don't fit my needs. They definitely work well at protecting my hands from freezing weather, but they are way too bulky for regular motorcycle use. In my opinion, I feel that these would be much more suited for a snowmobile or ATV. If you treat them as what they’re mostly designed for — ATV/snow-related riding or cold-weather utilitarian use — these gloves are a solid buy. They deliver warmth, weather protection, and decent control through the TPU windows. But if you put them on a fast street motorcycle or expect “motorcycle-glove” levels of control and feel — they’ll likely disappoint or even pose safety trade-offs. In that context, lighter and more control-oriented gloves would probably serve you better. The reason I'm docking stars is because they're marketed toward motorcycle users, and they;re very impractical. The durability seems pretty good, as I've taken them out and even had a couple of rocks/road debris hit the TPU windows with no scratches or punctures. They're not super comfortable to use at highway speeds, especially since they fit so loose, and they tend to press my front brake/clutch which is very dangerous. I personally cannot recommend this product for motorcycle use, unless you already have handguards, which will probably negate the need for these at all. Invest in some good heated gloves and/or heated grips, and I think you'll be much safer and better off in the end. For the price, I think this is a good value, but they're just not for me.
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Reviewed in the United States on December 11, 2025
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Verified Purchase
Bob Cremer
Houston, US
★★★★★ 5
All ATV owners need these.
These gloves are fabulous. Anybody having fun on a ATV need these. With my hand warmer and these gloves, I don’t wear anything else on my hands. They are great.
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Reviewed in the United States on October 30, 2025
C
Verified Purchase
Chuck
Fort Morgan, US
★★★★★ 2
handlebar mittens
Too big. If using during snow plowing they are a burden due to need to take hands off controls, and shift from forward to reverse. Might be okay if just riding around on trails, etc.
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Reviewed in the United States on December 8, 2025

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