Coboc Skye City Chain vs Belt: What Changes with the Drivetrain?
The Coboc Skye City chain vs belt decision starts with the transmission, rather than the frame opening or paint. Coboc describes City Chain with derailleur gearing and City Belt with a belt and hub gears. Both sit within the Bosch-powered City family, but those labels describe different equipment choices.

Coboc Skye City chain vs belt: separate the choices
The manufacturer’s City page offers each drivetrain in diamond and step-through frames. A step-through is therefore not shorthand for a belt, and a diamond frame does not automatically mean a derailleur. Write down drivetrain and frame format as two separate preferences before comparing individual listings.
The local Ocean City Chain DMT listing gives one concrete starting point. The Coboc Skye City Chain DMT Bike — Ocean listing identifies the model as Skye City Chain DMT. Its name establishes that identity; it does not supply a complete component list for every City option.
Read the model cards without turning weight into a verdict
The cited City cards give 17.4 kg for Chain and 18.2 kg for Belt, including the Belt DMT and STP choices. These are manufacturer figures for named versions. They do not measure the bicycle you will lift with your own lock, bags or changed parts, and they cannot predict which transmission you will prefer.
Both choices are described with a Bosch Performance Line SX mid-motor and a rigid fork. Electric assistance and the mechanical transmission are different parts of the specification: the shared motor name does not make the chain and belt layouts identical.
Ask about the actual shifting arrangement
The Skye manual distinguishes mechanical and electronic hub-shift connections in its belt rear-wheel section. That distinction matters when identifying a bicycle for a service booking. “Belt” alone is not an exact shifter specification. Ask for the hub and control names on the particular version rather than applying one set of workshop instructions to every belt bike.
FAQ: deciding between City transmissions
Does STP mean belt drive?
No. The City family page describes both drivetrains in step-through and diamond formats; inspect the full model name.
Does the historical photograph show a City Belt?
No. It shows an older Coboc beside an Emu and establishes no current City configuration.
Which option should I shortlist first?
Start with the transmission and frame combination you want to examine, then verify its actual parts. Use the Coboc range introduction for family context and the Coboc topic to compare named listings. The useful Coboc Skye City chain vs belt comparison keeps those choices explicit.
Sources
Coboc primary document 1 (https://www.coboc.biz/en/skye-city/).
Coboc primary document 2 (https://www.coboc.biz/wp-content/uploads/2026/09/Bedienungsanleitung_Skye_ab_25.pdf).
Photograph credits and permissions
Photograph 1
Original title: Two electric bikes against the wall
Creator: Andreas / londoncyclist; creator profile: https://www.flickr.com/people/andikam/
Copyright notice: No separate photograph copyright notice supplied. Embedded sRGB colour-profile notice: Copyright (c) 1998 Hewlett-Packard Company; this concerns the profile, not authorship of the photograph.
Original source URI: https://www.flickr.com/photos/andikam/25424228865/
License / permission: CC BY 2.0
License / permission URI: https://creativecommons.org/licenses/by/2.0/
Modification notice: Source-hosted JPEG retained unchanged by this preparer. Original XMP records Adobe Photoshop Lightroom 6.1 (Macintosh), a saved-to-new-location derivative and image/metadata saves on 2016-03-01T16:49:55-08:00. Prior applied changes include crop (top 0.141846, bottom 0.893653), rotation -1.48818 degrees, custom white balance, saturation +19, vibrance +20, highlights +16, shadows -55, whites -20, blacks +12 and clarity +10. Full XMP and ICC retained.
Source disclaimer: Taken 30 January 2016, uploaded 2 March 2016. The historical Coboc is at left; the bicycle at right is Emu. Exact Coboc model and manufacturing year are unverified. Neither bicycle is a current Skye City example. No endorsement or warranties are implied; other rights may apply.