UK's Leading Specialist
Recalibrating
Performance
with Precision
Independent smart trainer service centre specialising in servicing, spare parts, CNC-machined components, and expert repairs for Wahoo, Tacx, and more.
500+
Trainers Serviced
4 Days
Typical Turnaround
5 Stars
Google Review Rating
What We Do
Expert Services for
Every Smart Trainer
From worn bearings to snapped belts, we diagnose and fix the issues that keep your trainer from performing at its best.
Send-In Service
Ship your trainer to us with free return postage included on all bearing services. Typical 48-hour turnaround from assessment to completion.
Book nowSpare Parts Shop
Browse our full catalogue of bearings, belts, shafts, axles, power supplies, and accessories for DIY repairs on your smart trainer.
Visit shopElectronics
Professional electronics diagnostics, repairs, firmware updates, and component servicing for reliable smart trainer performance and long term durability.
Learn moreCNC Machined Parts
Precision-engineered replacement flywheel shafts, pulleys, and components manufactured in-house to exact OEM specifications.
Browse partsBearing Replacement
Professional drive pulley bearing replacement for all Wahoo Kickr and Tacx Neo models. We use only NSK and Enduro premium bearings.
View servicesPower correlation test
Accurate power correlation testing to compare trainer readings, verify consistency, and ensure reliable performance across your setup.
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About Us
The Smart Trainer
Service Specialists
We’re an independent service centre dedicated entirely to indoor cycling smart trainers. Unlike general bike shops, every tool, every bearing, and every part we stock is purpose-selected for trainer repair.
Our CNC-machined replacement shafts and pulleys are manufactured to exact tolerances, and we use only premium NSK and Enduro bearings in every service. The result is a trainer that performs like new — or better.
Recalibrating performance
with precision
with precision
Brands We Service
Parts & Repairs for
All Major Trainers
Shop
Popular Parts & Services
Wahoo KICKR Core Flywheel Pulley
Replacement KICKR flywheel pulley. CNC machined from 6082 aluminium.
View product
Wahoo KICKR flywheel pulley
Replacement pulley for Wahoo KICKR Core and V4/5/6 trainers.
View product
How It Works
Five Simple Steps
Getting your trainer serviced has never been easier. Our send-in process is designed to be hassle-free from start to finish.
01
Book Online
Select your service and shipping choice and complete your booking. We'll send confirmation straight away.
02
Ship to Us
We'll provide packing instructions with your booking confirmation. Pack your trainer securely and send it to our workshop.
03
Expert Service
Our experienced technicians diagnose and complete the service and relevant repairs using premium components.
04
Testing
Every trainer is tested using our power correlation protocol and Zwift verification if requested
05
Ride Again
We'll make sure your trainer arrives back safely. Recalibrated, precise, and ready for your next session
What Our Customers Say
Trusted by Cyclists
Across the UK
★★★★★
“Brilliant service. Sent my Kickr V5 in with a grinding noise and had it back within 3 days running smoother than when I first bought it. The new bearings are noticeably quieter.”
Wahoo Kickr V5 — Bearing Replacement
★★★★★
“Couldn't find a replacement flywheel shaft anywhere until I found STSC. CNC-machined part fitted perfectly and my Neo is back to full power. Highly recommend for Tacx owners.”
Tacx Neo 2T — Flywheel Shaft
★★★★★
“Ordered a belt and bearings for a DIY repair on my Kickr Core. Parts arrived next day, clear instructions included. Saved a fortune compared to buying a new trainer.”
Wahoo Kickr Core — DIY Parts Order
Simply place your order through our shop for the relevant bearing replacement service. We’ll email you full packing instructions and a shipping address. Pack your trainer securely and send it to us. We typically complete the service within 2–3 working days of receiving your unit, and return postage is included in the price.
We specialise in Wahoo, Tacx, Zwift, Elite, Pinnacle, Jet Black. If your trainer isn’t listed, get in touch — we may still be able to help.
Yes. Our shop stocks NSK and Enduro bearings, replacement belts, CNC-machined flywheel shafts, tension pulleys, power supplies, fans, feet, and various other components. All parts can be purchased individually for self-service repairs.
Yes, return postage is included in all our bearing replacement services. For individual parts orders, standard UK shipping rates apply. Orders placed before 2pm Monday–Friday are dispatched same day.
Most bearing replacement services are completed within 2–3 working days of receiving your trainer. We’ll keep you updated by email throughout the process and let you know as soon as it’s on its way back.