Image: A custom bike build at BikeClinique — Specialized S-Works frame, SRAM Force eTap AXS electronic groupset. London-based workshop serving road, gravel, and MTB riders across South London.
The gear lever that changed how I think about bikes
I've been a bike mechanic for over a decade. I've built hundreds of bikes, rebuilt more gear systems than I can count, and spent thousands of hours dialling in cables, limit screws, and barrel adjusters.
And I still think most riders are missing out on something genuinely transformative.
Electronic gearing.
Not because it's newer. Not because it's fashionable. Because once you've ridden it properly, it's very hard to go back. And I say that as someone who used to be deeply skeptical.
What is electronic shifting actually like?
Imagine this: you approach a climb. You click the lever. The derailleur moves. The chain shifts. Instantly. Every time. No lag, no chain bounce, no "did that actually go in" moment. It just goes. Under load, in the wet, when you're tired, when you're standing — it doesn't matter.
That's Shimano Di2. That's SRAM AXS. That's Campagnolo EPS.
The mechanical shift you know — that slight delay, the cable stretch settling in, the micro-adjustments needed after a few weeks — that's gone. Electronic shifting moves with the precision of a machine because it is a machine. Each shift is identical to the last. Every single time.
Three things riders don't expect
1. It makes you faster without doing anything different
You're not stronger. Your bike isn't lighter. But when shifting is instant and effortless, you stay in the right gear more often. That means your cadence stays stable, your power stays smooth, and you waste less energy fighting a bike that's fighting back.
On a long ride or race, that compounds. Every bad shift is a micro-interruption. Electronic shifting removes them all.
2. It's actually easier to maintain
I know this sounds wrong. But hear me out.
Mechanical shifting is simple in concept but demanding in execution: cables stretch, housing compresses, cable tension drifts. You adjust, it settles, you adjust again. Over time, the system degrades.
Electronic shifting eliminates all of that. Once it's set, it's set. No cable stretch. No housing compression. The derailleur does exactly what the motor tells it to do — every shift, for years. Yes, there's a battery. But the battery lasts 30-60 hours, charges via a simple cable, and gives you plenty of warning before it needs attention.
The mechanical side of an electronic groupset is actually simpler than a high-end mechanical setup. That surprises people. It shouldn't.
3. The difference on a gravel bike or mountain bike is even bigger
Road riders often adapt quickly to electronic. Gravel and MTB riders often describe it as a revelation.
When you're on rough terrain, your hands are under load, your body is moving, you're hitting bumps mid-shift. Mechanical shifting under those conditions is compromised — you're often not in the right gear because the shift was too hard or too slow.
Electronic shifting doesn't care. You click, it moves. On a gravel bike doing mixed terrain, that means you can stay in the right gear through technical sections you used to have to pre-shift for. On an MTB, it means faster, more positive shifts under braking and acceleration than mechanical can ever deliver.
The objections — and why they're mostly wrong
"But what if the battery runs out?"
Modern electronic groupsets give you 30-60 hours of shifting per charge. Most riders charge every 1-2 weeks. The system alerts you well before it's empty. And even if you somehow drain it completely, the rear derailleur on most systems has a fallback mode — it stays in the last gear you were using so you can still get home. It's not a problem in practice. It's like worrying your car key battery will leave you stranded — technically possible, practically never an issue.
"It's too expensive."
Electronic groupsets cost more upfront. That's true. A full Shimano Ultegra Di2 groupset costs more than its mechanical counterpart. A SRAM Force AXS costs more than mechanical Force.
But consider: you're not buying new cables, housings, and adjustment time every few months. The system doesn't degrade the same way. And if you're the kind of rider who keeps a bike for 5-7 years, the cost per ride evens out significantly. Add to that the performance benefit — it's not just a luxury, it's a meaningful upgrade to how the bike works for you every time you ride.
Also: you don't need to buy a whole new bike to experience it. Groupset upgrades are one of the best-value upgrades you can make to an existing frame.
"Mechanical isn't broken — why fix it?"
This is fair. Mechanical shifting works. Tour de France riders won on mechanical groupsets until very recently. It's not broken.
But "works" and "works brilliantly" are different things. If you'd never tasted a good espresso, instant coffee would be fine. Once you know the difference, you know the difference.
Who should try electronic shifting?
- Competitive road riders — the precision and consistency under effort are real marginal gains.
- Gravel riders — the ability to shift smoothly through variable terrain without pre-planning is a genuine advantage.
- Mountain bikers — AXS and Di2 have fundamentally changed MTB shifting. The consistency under brake and load is unmatched.
- Any rider who commutes or does long rides — fewer adjustments, more reliable performance, less maintenance time.
- Any rider who's ever thought "my shifting could be better" — it can. Electronic is almost certainly the answer.
Where to start?
If you're curious, the entry points are more accessible than people think:
- Shimano 105 Di2 — the most affordable electronic road groupset Shimano makes, and it's genuinely excellent. The same technology as Ultegra and Dura-Ace, just built to a slightly different price point.
- SRAM Rival AXS — the entry point to the AXS ecosystem. Excellent shifting, broad compatibility with other AXS components, and a genuine step up from mechanical.
- Shimano GRX Di2 — the gravel-specific option. If you're doing mixed terrain, this is the groupset that makes sense.
- SRAM Eagle AXS — mountain bike electronic shifting at its best.
You don't need to jump to the top of the range to feel the difference. The step from mechanical to 105 Di2 or Rival AXS is the biggest shift you'll make. After that, the improvements are more incremental.
The bottom line from the workshop floor
I've fitted a lot of electronic groupsets over the last few years. I've yet to have a customer say "I'd rather go back to mechanical." Not once.
Most riders describe it the same way: "I didn't realise how much I was fighting my own bike until I didn't have to any more."
That's the difference. It's not a gimmick. It's not a fashion statement. It's a genuine improvement to how a bike works — and once you've felt it, most riders don't look back.
If you've been wondering whether electronic shifting is worth it, the answer is: yes, at least once. Come and try it.
Ready to experience electronic shifting? Book a consultation at bikeclinique.com or call us on 07951 125 843. We're based in Putney and Wimbledon, South West London — and we fit, service and upgrade Shimano Di2, SRAM AXS, and Campagnolo EPS across the city.