Shimano SM-RT76 Disc Rotor 180mm XT 6-Bolt
The Shimano XT brake disc with the manufacturer's designation SM-RT76 comes without ICE-Tech, but otherwise offers the same qualities as the SM-RT86 brake disc, for example. The aluminium carrier dissipates heat better than one-piece brake discs as a result of braking processes, as aluminium has better thermal conductivity. In addition, aluminium as a carrier is less susceptible to deformation and effectively prevents vibrations during braking manoeuvres. The SM-RT76 is equipped with the 6-hole mounting standard and is ideally suited for the Shimano XT disc brakes.
The Shimano XT brake disc with the manufacturer's designation SM-RT76 comes without ICE-Tech, but otherwise offers the same qualities as the SM-RT86 brake disc, for example. The aluminium carrier dissipates heat better than one-piece brake discs as a result of braking processes, as aluminium has better thermal conductivity. In addition, aluminium as a carrier is less susceptible to deformation and effectively prevents vibrations during braking manoeuvres. The SM-RT76 is equipped with the 6-hole mounting standard and is ideally suited for the Shimano XT disc brakes.
The Shimano XT brake disc with the manufacturer's designation SM-RT76 comes without ICE-Tech, but otherwise offers the same qualities as the SM-RT86 brake disc, for example. The aluminium carrier dissipates heat better than one-piece brake discs as a result of braking processes, as aluminium has better thermal conductivity. In addition, aluminium as a carrier is less susceptible to deformation and effectively prevents vibrations during braking manoeuvres. The SM-RT76 is equipped with the 6-hole mounting standard and is ideally suited for the Shimano XT disc brakes.
The Shimano XT brake disc with the manufacturer's designation SM-RT76 comes without ICE-Tech, but otherwise offers the same qualities as the SM-RT86 brake disc, for example. The aluminium carrier dissipates heat better than one-piece brake discs as a result of braking processes, as aluminium has better thermal conductivity. In addition, aluminium as a carrier is less susceptible to deformation and effectively prevents vibrations during braking manoeuvres. The SM-RT76 is equipped with the 6-hole mounting standard and is ideally suited for the Shimano XT disc brakes.
in 23 offers
The lowest price for Shimano SM-RT76 Disc Rotor 180mm XT 6-Bolt right now is $15.11 at AliExpress.com - AliExpress-226247430, compared across 20 retailers.
The all-time low was $12.19 on 6 Oct 2026 — today's price is 24% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 7 Oct 2026.
Last updated at 07/10/2026 12:26:15
Bike Brake Rear Drum XT SM-RT86 SLX SM-RT76 SM-RT66 6 Bolts Brake Disc for MTB Disc Brake Six Nails 160mm 180mm 203mm Brake Rotor(Rt76 1 pcs 180mm)
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Shimano SM-RT66 SM-RT76 DEORE XT SM-RT86 Disc Brake Rotor Disc Centerline Center 6 Bolts MTB Bike
Delivery $12.48
Shimano XT SM-RT76 Disc Rotor 180mm 6-Bolt
Delivery between Fri – Tue $9.99
Shimano SM-RT76 Disc Brake Rotor XT 6-Bolt, 180mm
Delivery between 9–19 Oct $12.94
Shimano SM-RT76 Disc Rotor 180mm SLX 6-Bolt
Delivery between 8–19 Oct $12.95
Shimano Deore XT SM-RT76 6-Bolt Disc Brake Rotor
Delivery between 9–14 Oct $9.90
Shimano XT SM-RT76M2 disc brake Diameter 180 mm
Delivery between Thu – Fri $40.54
Shimano SM-RT76 DISC ROTOR 180mm XT 6-BOLT
Delivery between 12–20 Oct $19
Shimano Disc Brake Rotor SM-RT76 6 Bolt 180mm
Free delivery between 12–20 Oct
Shimano Deore XT RT76 6 Bolt Disc Rotor 180mm
Delivery between 13–15 Oct $9.90
originally posted on jensonusa.com
Purchased these rotors rather than the ice tech rotors. I run metallic sintered brake pads and wanted rotors that would last longer. Ice tech rotors are quiet but they tend to wear out faster with metallic sintered pads. Was disappointed that Jenson could not get me a 203mm rotor-out of stock. So I went with two 180mm rotors for my Santa Cruz Hightower. So far after about 8 hours of trail time these rotors teamed up with Shimano XT brakes have not disappointed.
originally posted on biketart.com
These discs came as stock on my Scott Spark XC bike: 180mm F / 160mm R used with XTR brakes. I recently completed a Santa Cruz Hightower self-build using Hope Tech4/E4 brakes with Hope Floating 200 F / 180 R rotors, and even though the bike is probably a bit "over-braked", the braking power on tap gives me more confidence on fact descents. As I switched between bikes, I realised I didn't get the same confidence on the Spark with the stock 180mm front rotor, so I upgraded it to 203mm (with the same 2-pot XTR caliper). The change has worked well - improving fast descent confidence while keeping control-ability / modulation. I thought a 203 F / 160 R set up might be unbalanced, but the 160 disc is fine for the rear given the relative lack of weighting. Not ... MoreThese discs came as stock on my Scott Spark XC bike: 180mm F / 160mm R used with XTR brakes. I recently completed a Santa Cruz Hightower self-build using Hope Tech4/E4 brakes with Hope Floating 200 F / 180 R rotors, and even though the bike is probably a bit "over-braked", the braking power on tap gives me more confidence on fact descents. As I switched between bikes, I realised I didn't get the same confidence on the Spark with the stock 180mm front rotor, so I upgraded it to 203mm (with the same 2-pot XTR caliper). The change has worked well - improving fast descent confidence while keeping control-ability / modulation. I thought a 203 F / 160 R set up might be unbalanced, but the 160 disc is fine for the rear given the relative lack of weighting. Not surprisingly, 2-pot XTR brakes still don't match the Tech4/E4 brakes on my Hightower, but moving to a 203mm front rotor has closed the gap noticeably.
originally posted on cambriabike.com
These 203mm rotors have changed whole bike experience for me. Was thinking about upgrading my basic MT-200 brakes, but with these 203mm front and rear it is now like having a set of the most expensive brakes. Original item, great quality.
| Bicycle Type | MTB |
| Brake Type | Disc brake |
| Groupset Compatibility | Deore XT |
| Braking Power | Consistent modulation (even under hard braking) |
| Durability | Prolongs the service life of disc and coating |
Bike Brake Rear Drum XT SM-RT86 SLX SM-RT76 SM-RT66 6 Bolts Brake Disc for MTB Disc Brake Six Nails 160mm 180mm 203mm Brake Rotor(Rt76 1 pcs 180mm)
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano SM-RT66 SM-RT76 DEORE XT SM-RT86 Disc Brake Rotor Disc Centerline Center 6 Bolts MTB Bike
Delivery $12.48
Shimano XT SM-RT76 Disc Rotor 180mm 6-Bolt
Delivery between Fri – Tue $9.99
Shimano SM-RT76 Disc Brake Rotor XT 6-Bolt, 180mm
Delivery between 9–19 Oct $12.94
Shimano SM-RT76 Disc Rotor 180mm SLX 6-Bolt
Delivery between 8–19 Oct $12.95
Purchased these rotors rather than the ice tech rotors. I run metallic sintered brake pads and wanted rotors that would last longer. Ice tech rotors are quiet but they tend to wear out faster with metallic sintered pads. Was disappointed that Jenson could not get me a 203mm rotor-out of stock. So I went with two 180mm rotors for my Santa Cruz Hightower. So far after about 8 hours of trail time these rotors teamed up with Shimano XT brakes have not disappointed.
These discs came as stock on my Scott Spark XC bike: 180mm F / 160mm R used with XTR brakes. I recently completed a Santa Cruz Hightower self-build using Hope Tech4/E4 brakes with Hope Floating 200 F / 180 R rotors, and even though the bike is probably a bit "over-braked", the braking power on tap gives me more confidence on fact descents. As I switched between bikes, I realised I didn't get the same confidence on the Spark with the stock 180mm front rotor, so I upgraded it to 203mm (with the same 2-pot XTR caliper). The change has worked well - improving fast descent confidence while keeping control-ability / modulation. I thought a 203 F / 160 R set up might be unbalanced, but the 160 disc is fine for the rear given the relative lack of weighting. Not ... MoreThese discs came as stock on my Scott Spark XC bike: 180mm F / 160mm R used with XTR brakes. I recently completed a Santa Cruz Hightower self-build using Hope Tech4/E4 brakes with Hope Floating 200 F / 180 R rotors, and even though the bike is probably a bit "over-braked", the braking power on tap gives me more confidence on fact descents. As I switched between bikes, I realised I didn't get the same confidence on the Spark with the stock 180mm front rotor, so I upgraded it to 203mm (with the same 2-pot XTR caliper). The change has worked well - improving fast descent confidence while keeping control-ability / modulation. I thought a 203 F / 160 R set up might be unbalanced, but the 160 disc is fine for the rear given the relative lack of weighting. Not surprisingly, 2-pot XTR brakes still don't match the Tech4/E4 brakes on my Hightower, but moving to a 203mm front rotor has closed the gap noticeably.
These 203mm rotors have changed whole bike experience for me. Was thinking about upgrading my basic MT-200 brakes, but with these 203mm front and rear it is now like having a set of the most expensive brakes. Original item, great quality.
Shimano's RT86 "Ice Tech" line might get most of the attention, but their ancestral RT76s still get the job done.RT76s aren't quite as light because only the carrier is aluminum; the rotor is good ol' reliable steel. The upside of this is that RT76s tend to last longer and hold up to abuse better as compared to the aluminum-and-steel sandwich offered in the RT86s.The RT76s are also more forgiving of brake pad material (resin, ceramic or sintered metallic).Can't go wrong with either, but if price and versatility are your top concerns, the RT76 might be your best option.
From what I've seen these are now made in China. They used to be made in Japan. I purchased a pair in the past when they were made in Japan. They lasted a couple of seasons paired with sintered metallic pads. I also have used the RT-66 rotors and they perform the same. From what I have seen the new ones made in China are inferior. There are some videos online about this if you are interested.
I needed a set of rotors for my 2nd set of MTB wheels since I find it too time consuming to move over the 6-bolt rotors when I want to switch between 29'er and 27.5+ wheelsets. These are the same rotors that came on my first set of wheels and have been performing without an issue with the XT brakes so it made sense to buy the exact same rotors for the second set of wheels. The downhills I ride aren't long enough to need IceTech, so these are the best value. The review linked to 203mm, but mine are 180mm. These came in original Shimano retail packaging and were true out of the box.
Wanted more stopping power at my rear wheel than the stock 160mm rotor was able to provide so decided to upgrade to the 180mm RT76. What a difference maker this rotor has been. I'd already been using my preferred metal brake pads and the additional diameter (and Shimano quality) of this 180mm rotor has helped my control and confidence a great deal. Like the other 2 piece Shimano rotors I've tried (RT-86 & MT800) this RT-76 is notable for remaining true much longer than other brake rotors. One drawback is that it lacks the IceTech design--this RT76 is solid steel where IceTech has an aluminum core. Perhaps I'll get longer life out of this rotor, but if heat build-up and resulting brake fade would ever be an issue with your riding, you might wish to go to the RT86, ... MoreWanted more stopping power at my rear wheel than the stock 160mm rotor was able to provide so decided to upgrade to the 180mm RT76. What a difference maker this rotor has been. I'd already been using my preferred metal brake pads and the additional diameter (and Shimano quality) of this 180mm rotor has helped my control and confidence a great deal. Like the other 2 piece Shimano rotors I've tried (RT-86 & MT800) this RT-76 is notable for remaining true much longer than other brake rotors. One drawback is that it lacks the IceTech design--this RT76 is solid steel where IceTech has an aluminum core. Perhaps I'll get longer life out of this rotor, but if heat build-up and resulting brake fade would ever be an issue with your riding, you might wish to go to the RT86, which is the 6-bolt IceTech. The price points are similar most places. I'm very happy with the RT-76: performance improvement and lasting quality so I'm not having to jack around making the brakes quiet.
The brake rotor was just what I was looking for. Genuine Shimano, complete with fasteners (rotor to hub), that fitted perfectly. Hopefully, it will be on the bike for a while... (The last one was only replaced as it was damaged in an accident.)
Decent price from bike tart. Rotors themselves are recommended, I went for 203mm f&r, the alu spider prevents flex as I have experienced during turns with all in 1 rotors. Modulation is simplified with single finger braking whereas it was twitchy with 180mm. + They look the dogs on
| Bicycle Type | MTB |
| Brake Type | Disc brake |
| Groupset Compatibility | Deore XT |
| Braking Power | Consistent modulation (even under hard braking) |
| Durability | Prolongs the service life of disc and coating |
