Shimano’s wireless shifting mountain bike group is finally here, and there’s a ton to absorb. To keep our XTR Di2 tech story from crashing your browser, we’ve created a second post here to go over the important stuff – you know, prices and actual weights.

Shimano has released the claimed weights of many of the new XTR parts, but to see how those claimed weights stack up, we’ve pulled what we can off our test bike, which was fitted with the M9220 enduro group with a 10-51t cassette.

Shimano XTR Di2 Weight: Brakes

The BL-M9220 is the new four-piston brake with a pull-master cylinder. For weight purposes, this is the front brake with brake pads and filled with the new Low-Viscosity mineral oil. The brake checks in at 292g on our scale, and is 307/327g claimed. Shimano is also offering this brake lever paired with the M9200 XC two-piston brake caliper, and they claim the weight for that set is 239/259g (F/R). Compare that to the full XC M9200 brake with new resin pistons, seals, and the Low-Viscosity brake fluid, which has a claimed weight of 192/212g.

The M9220 Enduro brakes sell for $330 front, $335 rear, or you can get the brake upgrade kit, which includes both brakes, fluid, and extra brake pads for $670.

The M9220/M9200 Trail brakes are priced at $305 each, while the updated M9200 XC brakes are $295 each.

The RT-CL900 rotors are not new for the group, but we threw one on the scale anyway to verify the weight. This 203mm rotor checks in 5g less than claimed at 164g, and sells for $110.

Shimano XTR Di2 Weight: Crankset

The M9220 Enduro Spec Crank has a reinforced spindle and hollow forged aluminum arms, but it’s still impressively light at 532g for a 170mm crank. Currently, weights for the XC Spec crank are not available to compare, but the price is the same for the Enduro or XC crank at $310.

Shimano XTR Di2 Weight: Chainring

The new XTR groups do not require a new chainring, but that didn’t stop Shimano from creating a new one that was better. Mostly, they focused the material on the areas of the ring that were most likely to see impact, and removed it from the other areas. The result is a 65g ring in a 32t. These sell for $150 each in 28, 30, 32, 34, 36, and 38t sizes. Note that the new rings are 0mm offset, while the previous rings are 3mm offset to account for differences in the cranks to accomplish a 55mm chainline. Make sure you get the right ring for the right crankset to maintain the proper chainline.

Shimano XTR Di2 Weight: Shifter

It wouldn’t be a wireless group without a wireless shifter, and it wouldn’t be a Shimano group without obsessively engineered ergonomics. The new shifter is a thing of beauty, and checks in exactly as claimed at 97g for the I-Spec EV version, or 104g for the band clamp version. Each sells for $220. The shifter is the same for both the XC and Enduro groups.

Shimano XTR Di2 Weight: Rear Derailleur

The new XTR Di2 rear derailleur looks much better when it’s mounted to a bike, and it’s packed with clever tech to keep it running smoothly in the long run. On the scale, the SGS derailleur checks in at 415g with a battery installed, or 391g without, which matches the claimed weight of 391g. The GS rear derailleur has a slightly lower claimed weight at 389g, so with the addition of a 24g battery, you’re looking at a 413g short cage derailleur.

Both the SGS and the GS rear derailleurs are the same for the XC and Enduro groups, and sell for $665 each.

There are also two rear derailleur models for ebikes, which are hard-wired without their own batteries. Split into an 11-speed Linkglide model and a 12-speed Hyperglide+ model, both have claimed weights of 372g and retail prices of $665.

Shimano XTR Di2 Weight: Cassette

There are new cassettes for the XTR Di2 group, but they’re not required since the group will work with all existing Shimano Hyperglide+ 12-speed cassettes. On the scale, the CS-M9200-12 10-51t cassette showed 365g. The 9-45t compact cassette has a claimed weight of 327g, and Shimano says you’ll drop about 70g total by moving to the GS group. As usual, the cassette is pricy at $500, but the beauty of this group is that if you want to save money and run a heavier Deore cassette, you can (for the SGS group, at least).

Shimano XTR Di2 Weight: Chain Weights of the Shimano XTR M9100 12-speed mechanical group components, which includes the current M9100 chain in the middle.

There is no new chain for the XTR Di2 group, so any existing Hyperglide+ 12-speed chain will work. The current CN-M9100 XTR chain has a claimed weight of 242g (though when we last weighed it above, it was 262g) and sells for $85 for reference.

Shimano XTR Di2 Weight: Wheels & Hubs XTR Enduro Wheels (Photo/Shimano) Shimano XC Wheels (Photo/Shimano)

We have not had a chance to verify the weight of the M9220 Enduro Wheels yet, but Shimano provides a claimed weight of 1791g, which is nearly the price at $1,715 for the set. The Titanium-spoked M9200 XC wheels drop substantial weight to a claimed 1157g, but also substantially increase the price to $2,400 for the pair.

The new Low Drag Hubs will also be available separately for $170/$365 (F/R), and weigh in at a claimed 121g/231g, which is the same listed for both the straight pull (XC) and J-bend versions (Enduro).

XTR Di2 Upgrade Kits

When considering pricing, it’s important to mention that Shimano will be offering upgrade kits that include everything you need for the new Di2 group to update an existing Hyperglide+ 12-speed Shimano drivetrain.

The Di2 Drivetrain Upgrade Kit will include a rear derailleur, shifter, battery, battery charger, and a 12s Quicklink and will sell for $985. If you price it out, it’s basically the same price as buying all the components individually, except you get an additional Quicklink for the chain, which Shimano requires as they’re one-time-use-only. Shimano points out that this will be available full-time, not just at the time of the launch. There are also four versions of the upgrade kit with a choice of SGS 10-51t or GS 9-45t derailleurs, and I-Spec EV or Band Clamp shifter mounts. Everything will ship in a nice presentation box made from easily recycled paper and cardboard.

Shimano will also be offering disc brake upgrade kits, which will include right and left brake levers, front and rear calipers and hoses, metal brake pads installed and additional resin pads included, and 100ml of the new low viscosity oil. The brake upgrade kits will only be offered in the four-piston enduro brake spec and are priced at $670.

Availability

All of the XTR components will be available starting today, from OEM partner brands and Shimano Dealers.

Make sure to check out our complete tech breakdown on the new Shimano XTR Di2 group here!

bike.shimano.com