When you're shopping for bicycle drivetrain brakes, the first question is whether you need a complete drivetrain group, a road-specific shifting setup, or just better braking power. You want components that work together without forcing you to buy more than your bike can use. The four Shimano packages here span exactly that range: two Deore M4100 drivetrain groups, a 105 R7000 road groupset, and a Deore brake set. The decision gets easier once you match each package to the kind of riding you actually do.
Quick Take
If you want a full mountain drivetrain in one box, the Deore M4100 groupset with shifter, cassette, and rear derailleur is the lowest-priced complete group here. If you ride a road bike and need integrated brake-shift levers with front and rear derailleurs, the 105 R7000 groupset is designed for that role. For a 1x mountain setup, the Deore M4100 drivetrain groupset is a strong four-piece match. And if your drivetrain is already fine but your brakes are weak on descents, the Deore BR-BL-M6100 brake set is the dedicated stopping option.
Listed Price Comparison
| Product | Listed Price | Price Bar | What's Included |
|---|---|---|---|
| Shimano Deore Groupset M4100 Shifter Cassette Sprocket M4120 Rear Derailleur | $107.39 | Shifters, rear derailleur, cassette, chain | |
| Shimano 105 R7000 2 x 11 Speed 3pcs Groupset Front Rear Derailleur Brake Lever | $179.88 | Front and rear derailleurs, brake lever | |
| New Shimano Deore M4100 10 Speed Drivetrain Groupset 42T 46T MTB (OE | $124.88 | Cassette, chain, rear derailleur, right shifter | |
| SHIMANO DEORE BR-BL-M6100 Bike MTB Hydraulic Disc Brake Set F&R 800/1450mm (OE | $129.99 | Hydraulic disc brake set, front and rear |
Decision Matrix
- Need a complete mountain drivetrain in one box? The Deore M4100 shifter, cassette, and rear derailleur group starts the price spread at $107.39.
- Need road shifting with integrated brake levers? The 105 R7000 groupset pairs front and rear derailleurs with a brake lever.
- Need a Deore 10-speed mountain drivetrain with a window shifter? The New Shimano Deore M4100 10 Speed Drivetrain Groupset covers the rear shifting core.
- Need hydraulic disc brakes for a mountain bike? The SHIMANO DEORE BR-BL-M6100 set is the brake-only option in this lineup.
Product Notes
Shimano Deore Groupset M4100 Shifter Cassette Sprocket M4120 Rear Derailleur
This is the most complete low-price drivetrain package in the group: shifters, rear derailleur, cassette, and chain together. The 10-speed cassette is an 11-42T, so it suits riders who want a wide climbing range without buying pieces separately. The rear derailleur is the M4120, and the set includes a KMC X10 chain. Its limitation is that it is a 10-speed MTB-focused group rather than an 11-speed road setup, and it does not include a front derailleur or brake levers. If your build needs those, you will have to source them separately.
Shimano 105 R7000 2 x 11 Speed 3pcs Groupset Front Rear Derailleur Brake Lever
This is the road-focused option here, with a 2x11 drivetrain and a brake lever included. The front derailleur uses a braze-on mount, and the rear derailleur is a medium cage (GS) model. That combination makes it a natural fit for road bike builds with integrated shift/brake levers. The limitation is the highest listed price in this comparison, and it's described as OEM parts in non-retail packaging. If you need a mountain drivetrain or hydraulic brakes, this is not the group to pick. It also does not include a cassette or chain.
New Shimano Deore M4100 10 Speed Drivetrain Groupset 42T 46T MTB (OE
This is another Deore M4100 10-speed mountain drivetrain group, but it arrives as a four-piece set: cassette, chain, rear derailleur, and right shifter. The right shifter has a window, so you can see the gear display. It is designed for downhill and mountain bikes, and it is offered with 42T/46T cassette gearing for wide-range riding. Its limitation is that this is a right-side shifter only, not a full shifter pair, and there is no front derailleur in the set. If you are running a 1x drivetrain, that may be exactly what you need.
SHIMANO DEORE BR-BL-M6100 Bike MTB Hydraulic Disc Brake Set F&R 800/1450mm (OE
If your drivetrain is already sorted but your stopping power is not, this is the dedicated brake set in the roundup. It is a hydraulic disc brake set for mountain bikes, with front and rear levers and calipers in black. The hose lengths are 800mm and 1450mm, which points to a front/rear setup. The caliper is a two-piston design, and it features quick brake engagement with a shorter free stroke. Its limitation is that it is only a brake set: no derailleurs, shifters, cassette, or chain are included.
Final Recommendation by Use Case
- For a complete mountain drivetrain, the Shimano Deore Groupset M4100 Shifter Cassette Sprocket M4120 Rear Derailleur gives you shifters, a rear derailleur, an 11-42T cassette, and a chain in one package.
- For road riders who need integrated shifting and braking, the Shimano 105 R7000 groupset is the road-oriented choice. You will need to add a cassette and chain.
- For a 1x mountain drivetrain, the New Shimano Deore M4100 10 Speed Drivetrain Groupset is a four-piece set covering the rear shifting core, with 42T/46T cassette gearing.
- For stopping on steep trails, the SHIMANO DEORE BR-BL-M6100 brake set adds front and rear disc brakes with 800mm and 1450mm hoses to a bike that already has the drivetrain you want.
