When cyclists talk about value, performance, and reliability, one name always comes up: Shimano 105. For decades, it’s been the benchmark for riders who want pro-level tech without the pro-level price tag. Today, you can choose between two incredible options: the classic mechanical Shimano 105 and the modern Shimano 105 Di2.

Shimano 105 has earned its reputation as the “people’s groupset.” It offers smooth, precise shifting, robust durability, and trickle-down technology from Shimano’s top-tier Ultegra and Dura-Ace lines. Whether you’re racing, training, or commuting, 105 delivers consistent performance that riders trust.

The mechanical version is a masterpiece of simplicity. It’s easy to maintain, cost-effective, and perfect for riders who love the tactile feel of cable-actuated shifting. Replacement parts are affordable and widely available, making it ideal for winter bikes or high-mileage machines. If you want a groupset that just works, year after year, mechanical 105 is hard to beat.

Shimano 105 Di2 brings cutting-edge technology to a wider audience. With semi-wireless design, lightning-fast shifts, it offers the same precision and reliability as Ultegra and Dura-Ace Di2, at a fraction of the cost. It’s the perfect entry point for riders ready to experience the future of shifting without breaking the bank.

Here’s the beauty of Shimano 105: both versions share the same DNA. The ergonomics, braking power, and overall ride experience are virtually identical. Whether you choose mechanical or Di2, you’re getting a groupset that’s durable, efficient, and engineered for real-world riding. The choice simply comes down to preference: do you love the simplicity of cables or the convenience of electronic shifting?

• Affordable performance: Pro-level tech at a fraction of the cost.
• Versatility: Perfect for everything from endurance rides to winter training.
• Innovation for all: Di2 brings electronic shifting to the masses, while mechanical remains a gold standard for reliability.
• Trickle-down tech: Hydraulic disc brakes, 12-speed drivetrains, and refined ergonomics, all borrowed from Shimano’s top-tier lines.

Shimano 105 is the ultimate choice for riders who want performance without compromise. Both versions are exceptional, and the only real difference is how you shift. No matter which you choose, you’re riding with a groupset that has defined cycling excellence for decades.