With Shimano’s electronic shifting now available across more price points, many riders are asking: is 105 Di2 better than Ultegra? Both groupsets share similar technology, but they target different riders. Let’s compare them side by side so you can choose the right upgrade for your bike.
Is 105 Di2 Better Than Ultegra?
No, 105 Di2 is not “better” than Ultegra, but it offers excellent value. Ultegra remains lighter, stiffer, and slightly more refined, while 105 Di2 brings electronic shifting to a lower price point. For most riders, the choice comes down to budget and performance priorities.
Key Differences Between 105 Di2 and Ultegra
1. Weight
Ultegra is lighter. Across the full groupset, Ultegra saves several hundred grams compared to 105 Di2. This difference matters more to racers and climbers.
2. Performance
Shifting performance is nearly identical. Both use Shimano’s 12-speed Di2 electronic system, delivering fast, precise, and reliable shifts. For everyday riding, you won’t notice a big difference in how gears engage.
3. Materials and Finish
Ultegra uses higher-grade materials. This means cranks, derailleurs, and cassettes are lighter and more polished compared to 105 Di2. 105 is built for durability and affordability, with a slightly less premium feel.
4. Price
105 Di2 is more affordable. It’s designed to bring electronic shifting to a broader audience, making it the best option for riders upgrading from mechanical groupsets without spending top-tier money.
5. Target Rider
Ultegra is aimed at enthusiasts and racers, while 105 Di2 is for value-conscious riders. If every gram and ounce of stiffness matters, Ultegra is the better choice. If you want the benefits of electronic shifting at a lower cost, 105 Di2 delivers.
Final Verdict: Is 105 Di2 Better Than Ultegra?
105 Di2 isn’t better than Ultegra, but it’s the best choice for value. Ultegra wins on weight, refinement, and prestige, while 105 Di2 makes electronic shifting more accessible. Riders upgrading from mechanical setups will love 105 Di2, while performance-driven cyclists may prefer Ultegra.
FAQs About 105 Di2 vs Ultegra
1. Do 105 Di2 and Ultegra share the same shifting speed?
Yes. Both use Shimano’s 12-speed Di2 system, so shift performance is nearly identical.
2. Can I race with 105 Di2?
Yes. 105 Di2 provides reliable, accurate shifting, making it suitable for racing. The only drawback is extra weight compared to Ultegra.
3. Is it worth upgrading from 105 Di2 to Ultegra?
It depends. If you want lighter components and higher-end materials, Ultegra is worth it. If value matters more, 105 Di2 is an excellent long-term choice.
