Bike Service · MTB Evolution
Chain and Cassette Service
Chain and cassette service at the MTB Evolution workshop in Istočno Sarajevo: chain wear measurement, bike chain replacement, cassette replacement, cleaning, lubrication and bike drivetrain adjustment for MTB, gravel, road and city bikes.
Mon–Sat
8:00 – 19:00
0.75%
chain wear limit
2,500–4,000 km
MTB interval
Overview
Symptoms of a worn chain or cassette
If you recognize any of these signs, your chain is probably stretched and your cassette is wearing faster than it should.
01
Hard or inconsistent shifting
02
Chain skipping under load
03
Rubbing or squeaking while riding
04
Visibly elongated chain
05
Cassette teeth look pointed and worn
06
Faster drivetrain wear in mud, rain and dust
01
Book a slot
Get in touch by phone, Viber, WhatsApp or the booking form and describe the symptoms: is the chain skipping, is shifting delayed, or do you hear rubbing? If you know roughly how many kilometers you've ridden since the last replacement, the assessment is quicker.
4 ways to contact us
02
Bike check-in
You bring the bike to the workshop at Riste Anđića 20. Together we go through the reported problem and note the condition of the drivetrain before anything is touched.
Workshop check-in
03
Chain wear measurement
The mechanic measures the chain with a chain wear checker and inspects the cassette and chainring teeth. A chain with 0.75% wear or more should be replaced. You get a price estimate, and work starts only after you confirm it. Read more about replacement intervals in the guide to drivetrain component wear.
0.75% checker
Why replace the chain on time?
A stretched chain rapidly wears the cassette and chainrings. If you replace the chain on time, the cassette can often outlast several chains, so cassette replacement is postponed or avoided.
04
Sourcing the chain and cassette
We choose the chain and cassette based on the number of speeds and compatibility with your drivetrain. We work with Shimano, SRAM and KMC. If a part isn't in stock, we order it and give you an estimated delivery time.
Shimano, SRAM, KMC
In stock or on order
We usually keep standard chains in the workshop. Cassettes for specific models are ordered, so the turnaround extends by the delivery time.
05
Replacement and adjustment
We replace the chain and, if needed, the cassette, then clean and lubricate the drivetrain and adjust the shifting for precise gear changes (derailleur adjustment). On Bosch and Shimano e-bikes we also run diagnostics, while Yamaha and other brands get mechanical service only, without diagnostics.
Replacement and adjustment
06
Check and pickup
Before handover we check shifting through all gears and how the chain behaves under load. You pick up the bike with an explanation of what was done and maintenance advice, including chain lubrication.
Final check
Book a service →
Intervals
When to replace the chain and cassette?
Approximate intervals depend on the type of bike, the terrain and the conditions you ride in. The actual condition of the chain is determined by a chain wear checker.
2,500–4,000 km
MTB bikes
Recommended chain and cassette replacement interval for MTB. In mud, rain and dust the drivetrain wears faster, so we replace parts earlier.
3,000–5,000 km
Road bikes
Recommended interval for road bikes. Regardless of mileage, we replace the chain when the checker shows 0.75% wear or more.
Labor prices: chain replacement 10 KM, cassette replacement from 10 to 20 KM. Parts (chain, cassette) are paid separately. You get an exact estimate before work starts, and work doesn't begin without your confirmation.
Services
Related services
Chain and cassette service often goes together with derailleur adjustment or a full overhaul. Browse all bike service options and the bike service price list.
Basic service
Derailleur and brake adjustment, chain, wheels, tire pressure and a quick frame inspection.
Learn more →
Full overhaul
Complete disassembly, cleaning, replacement of wear parts, wheel truing and bearing check.
Learn more →
Brake service
Bleeding, fresh brake fluid, pads, rotors and cleaning of the caliper pistons.
Learn more →
E-bike diagnostics
Bosch Diagnostic Tool 3 and Shimano E-Tube Professional: error code reading, software updates, battery health.
Learn more →
Washing and detailing
Hand wash, drivetrain cleaning, lubrication and protective frame coating.
Learn more →
Wheel service
Wheel truing, tire replacement and bearing service.
Learn more →
Suspension service
Fork and shock service, oil replacement and setup.
Learn more →
Derailleur adjustment
H, L and B screws, cable tension and precise gear shifting.
Learn more →
Price list
Prices of all services in one place, so you know in advance what to expect.
See prices →
FAQ
Frequently asked questions
How often should I replace my bike chain?
The recommended interval is every 2,500–4,000 km for MTB and 3,000–5,000 km for road bikes. We replace the chain earlier if you ride in mud, rain or dust.
How do I know if my chain is worn?
We measure chain wear with a dedicated chain wear checker. When it shows 0.75% or more, the chain should be replaced. External signs are skipping under load, inconsistent shifting and rubbing while riding.
Do I have to replace the cassette when I replace the chain?
Not always. If you replace the chain on time, the cassette can outlast several chains. If the cassette teeth are already pointed and worn, the cassette is replaced too.
What happens if I ride with a worn chain?
The cassette and chainrings wear out faster, and shifting becomes imprecise. Replacing the chain on time avoids an expensive replacement of the cassette and chainrings.
Which chains and cassettes do you install?
We work with Shimano, SRAM and KMC. The choice depends on the number of speeds and compatibility with your drivetrain.
How much does chain and cassette service cost?
Labor costs 10 KM for chain replacement and 10 to 20 KM for cassette replacement, while parts (chain, cassette) are paid separately. You get an exact estimate before work starts, and work doesn't begin without your confirmation.
Ready for precise shifting?
Don't wait for the chain to skip under load or for the cassette to lose its teeth completely. Book a slot and leave your chain and cassette service in Istočno Sarajevo to us. The workshop is run by Marko Ristivojević, Bosch eBike Expert and Master Bike Mechanic.
Bike service Istočno Sarajevo: Riste Anđića 20, 71123 Istočno Sarajevo · Mon–Sat 8:00–19:00 · Closed on Sundays
