MTB Groupsets

MTB Groupsets for Sale: 12 Speed & 1x12 Drivetrains

An MTB groupset is the full set of gears, shifters, and brakes that make up your mountain bike drivetrain. Velozzo stocks the mountain bike groupset in every level, from a value 1x12 groupset to a race-ready 12 speed mtb groupset. Choose a Shimano Deore groupset, an SLX or XT build, or a groupset upgrade kit to make your bike shift like new.

Free USA Shipping

Free USA Shipping

Every groupset order ships free, no minimums.
Full Drivetrain Kits

Full Drivetrain Kits

Gears, shifters, and brakes in one kit.
Easy 30-Day Returns

Easy 30-Day Returns

Wrong build? Send it back, hassle free.
Trusted Gear Brands

Trusted Gear Brands

Shimano, SRAM, and more quality groupsets stocked.

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SHOP BY GROUPSET TIER

Groupset Tier Best For
Shimano Deore Reliable 12 speed shifting at a fair price makes Deore an everyday rider favorite.
Shimano SLX Lighter weight and crisper shifts define SLX for the keen trail and enduro riders.
Shimano XT Race-level performance, low weight, and precise control mark the XT groupset on technical terrain.
SRAM MTB Wide-range 1x12 gearing gives the SRAM mtb groupset a light, simple, dependable trail feel.
Upgrade Kit Swaps worn parts for a smoother drivetrain, so the upgrade kit skips full rebuilds.

What to Look for When Buying an MTB Groupset

Groupsets differ by speed, brand, tier, and fit. These four points help you match the right kit to your mountain bike.
Speed Count

Speed Count

Modern mountain bikes mostly run 12 speed drivetrains. A 12 speed mtb groupset gives a wide gear range with a single front ring, known as 1x12. Check your current speed count first, since mixing speeds leads to poor shifting.

Brand System

Brand System

Shimano and SRAM are the two main groupset makers, and their parts do not mix. A Shimano groupset uses its own shifter pull, while a SRAM mtb groupset uses another. Pick one brand and keep the whole drivetrain matched.

Tier Level

Tier Level

Groupsets come in tiers that trade price for weight and polish. A Shimano Deore groupset is the great value pick, while an SLX or XT build shifts crisper and weighs less. Match the tier to your riding and budget.

Part Fit

Part Fit

A full groupset must suit your frame and your wheels. Check the freehub type, the rear hanger, and whether your frame clears the cassette and derailleur. A groupset upgrade kit is easiest when it matches your existing standards closely.

Typical Specs Across Our MTB Groupset Range

Spec Detail
Speeds Mostly 12 speed 1x12 groupset builds for modern trail riding.
Brands Shimano Deore, SLX, XT, and SRAM mtb groupset tiers available.
Includes Shifter, derailleur, cassette, chain, and crank in the full kits.
Gear Range Wide 10-51 tooth ratios for steep climbs and fast descents.
Fitting Installed at home with standard mountain bike drivetrain hand tools.
Best For Trail, cross-country, enduro, and gravel bike full drivetrain build upgrades.

A groupset is built from matched parts. Buy them together or one at a time from our bike cassettes, bike chains, and chainrings ranges. Complete the build with matching cranksets, genuine Shimano parts, and the right bike pedals from Velozzo.

Buy MTB Groupsets Online at Velozzo

Every MTB groupset at Velozzo is chosen for crisp, reliable shifting and long life at any price. Our range covers Shimano Deore, SLX, XT, and SRAM 12 speed kits for mountain bikes and gravel bikes, plus the suspension forks to match, with free shipping across the USA and a 30-day return policy. Our team is available by email and chat seven days a week.
Call (844) 442-3025

Frequently Asked Questions

What is an MTB groupset?
An MTB groupset is the collection of parts that shift and stop your mountain bike. It usually includes the shifter, derailleur, cassette, chain, crank, and brakes, all designed to work together as one matched system.
What does 1x12 mean on a groupset?
1x12 means one front chainring and a 12 speed cassette at the rear. A 1x12 groupset drops the front derailleur, giving simpler shifting and a wide gear range that suits most mountain biking.
What is the difference between Deore, SLX, and XT?
They are Shimano tiers. A Shimano Deore groupset is the value option, a Shimano SLX groupset adds lighter weight and crisper shifts, and a Shimano XT groupset is the race-level choice with the best performance.
Can I mix Shimano and SRAM parts?
Usually no. A Shimano shifter and a SRAM mtb groupset derailleur pull different amounts of cable, so they shift poorly together. Keep your drivetrain to one brand for clean, reliable gear changes.
Do I need a full groupset or just some parts?
It depends on wear. If only the chain and cassette are worn, replace those. If shifting is rough across the board, a full groupset or a groupset upgrade kit restores everything at once.
Will an MTB groupset fit my bike?
Most modern mountain bikes accept 12 speed groupsets, but check your freehub, hanger, and frame clearance first. Older frames may need extra parts, so confirm the standards before buying a full mtb drivetrain.
Is upgrading a groupset worth it?
Yes, if your shifting is worn or you want lighter, crisper gears. A groupset upgrade kit transforms how an older bike rides, often for far less than the cost of a new bike.
Do you offer free shipping on MTB groupsets?
Yes, Velozzo ships every MTB groupset free across the USA with no minimum order. Most orders arrive within a few business days, and each groupset is backed by our 30-day return policy.