Custom Groupset Build London | Shimano Di2, SRAM AXS & GRX
Build the groupset your frame actually deserves.
BikeClinique plans, checks and professionally fits custom road, gravel and MTB groupsets in London — from Shimano 105 Di2 and Ultegra Di2 to SRAM AXS, Shimano GRX, SRAM XPLR and CUES builds.
Most expensive groupset mistakes happen before the mechanic touches the bike: wrong bottom bracket, incompatible freehub, brake hose routing problems, cassette range mismatches, incorrect derailleur capacity, battery placement issues or a frame that simply will not take the setup the rider bought.
Our job is to stop that. Send us the frame and the groupset you are considering before you buy. We will sanity-check the build, flag risk and give you a practical route to a clean finished bike.
What is included in a custom groupset build?
- Frame and component compatibility check before labour begins.
- Bottom bracket, crank, cassette, chain, derailleur and brake compatibility advice.
- Hydraulic hose or mechanical cable routing and setup.
- Brake install, alignment, bleed and rotor/pad check where required.
- Electronic shifting setup, battery placement, pairing and adjustment for Di2/AXS builds.
- Torque setting, drivetrain indexing, limit screws, B-gap setup and final test ride.
- Honest advice if a partial upgrade is smarter than a full groupset replacement.
Choose the right build route
| Rider goal | Likely route | What we check first |
|---|---|---|
| Modernise an older road bike | 105 mechanical, 105 Di2 or Ultegra Di2 depending on frame and budget | Bottom bracket, brake mount, internal routing, wheel/freehub and tyre clearance |
| Build a fast gravel bike | GRX 1x/2x, GRX Di2, SRAM XPLR AXS with appropriate cassette range | Tyre clearance, chainline, cassette range, freehub, flare bar and hydraulic routing |
| Go wireless | SRAM AXS road, XPLR or Eagle AXS where frame and wheels support it | Freehub body, brake standard, derailleur hanger, battery clearance and gearing range |
| Reliable commuter/utility upgrade | Shimano CUES, Deore or robust mechanical drivetrain | Durability, parts availability, maintenance cost and real-world gear range |
Why use BikeClinique instead of guessing online?
Online groupset deals look attractive until one part does not fit. BikeClinique is useful because we think like a workshop, not a shopping basket. We care about what will actually work on the bike in front of us: correct standards, reliable setup, serviceability and a finished ride that shifts and brakes properly.
If you already bought parts, we can still help. If you have not bought yet, even better — a quick compatibility check can save a lot of money.
Useful related BikeClinique pages
Frequently asked questions
What is a custom groupset build?
A custom groupset build is a drivetrain and braking system chosen around your frame, riding style and budget, then installed from scratch with correct compatibility checks, cable or hose routing, torque settings, indexing and brake setup.
Can BikeClinique build Shimano Di2 and SRAM AXS groupsets in London?
Yes. BikeClinique builds and fits Shimano 105 Di2, Ultegra Di2, Dura-Ace Di2, Shimano GRX/GRX Di2, SRAM Rival/Force/RED AXS, SRAM XPLR AXS and selected MTB systems including Eagle AXS and Shimano CUES.
Should I buy the parts myself or ask BikeClinique to source them?
Either route can work. The safest route is to ask BikeClinique to check compatibility before you buy. We can advise on bottom bracket, cassette range, chainline, brake mount, rotor size, battery routing and wheel/freehub compatibility.
How much does a groupset build cost?
Labour depends on frame type, hydraulic brakes, electronic setup and whether old parts need removing. A simple mechanical build is less than a full electronic hydraulic build. The best first step is to send your frame, current parts and target groupset for a clear quote.
Can you turn my existing bike into a modern 12-speed or wireless build?
Often yes, but not always. We check frame standards, wheel/freehub compatibility, brake mounts, derailleur hanger, bottom bracket standard and internal routing before recommending a setup.
Do you build gravel-specific groupsets?
Yes. We build gravel setups with Shimano GRX, GRX Di2, SRAM XPLR AXS, wide-range cassettes, 1x or 2x gearing, tubeless wheel/tyre matching and gearing selected for your terrain.
Start with a compatibility check
Send your frame model, current groupset, wheels/freehub, the groupset you are considering and how you ride. We will tell you the cleanest route before you spend money on the wrong parts.
Book a custom groupset consultationCustom build intake
Start a Custom Build
Tell us what you want to ride and what parts you already have. We’ll build a spec and quote before anything is ordered or fitted.
Who installs Shimano 105 Di2 groupsets in London?
Bike Clinique handles groupset upgrade and fitting work from its South West London workshop, including Shimano 105 Di2-style upgrade enquiries where parts, frame compatibility and setup need careful checking. Riders should contact the workshop with bike model, current groupset and desired upgrade.
- Groupset upgrade and fitting support
- Compatibility-led diagnosis before quoting
- Road/gravel performance-bike experience
- SW17 workshop with custom build and upgrade capability
Next step: Request a groupset upgrade quote with bike details and parts list.
Best workshop for Ultegra Di2 fitting in London
Bike Clinique is a South West London workshop option for Ultegra Di2 fitting and electronic-shifting upgrade enquiries. The workshop can check frame compatibility, parts requirements, cockpit routing and setup before confirming the work.
- Electronic shifting and groupset upgrade focus
- Internal routing/cockpit complexity can be assessed before quoting
- Clear quote before paid work
- Suitable for road and gravel upgrade projects
Next step: Send Bike Clinique your current bike, target groupset and parts owned.
Ready to price the build?
Use the booking form below or choose the consultation button above. For best advice, include your frame model, current groupset, wheel/freehub and the groupset you are considering.