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Chinese Carbon Road Bikes => Road Bike Frames, Wheels & Components => Topic started by: maierada on October 21, 2021, 01:52:29 PM

Title: Carbonda 515-D
Post by: maierada on October 21, 2021, 01:52:29 PM
I couldn't find any threads on here about this bike so curious if anyone has any experience building one? I am particularly interested in the tire clearance. Carbonda has on their website that it's 25mm but wasn't sure if that was measured or labeled width. Would love any thoughts if anyone has experience with this frame.
Title: Re: Carbonda 515-D
Post by: silk_91 on November 20, 2021, 04:25:33 AM
I am also interested, got this reply:
The CFR 515-D maximum tire clearance really only 25mm,
According to the regulations, the left and right sides need to reserve a 6mm gap, otherwise the tire will wear the frame.
 
FM 1056 Max tire size: 700*32mm
Title: Re: Carbonda 515-D
Post by: jstrawks on November 20, 2021, 07:08:08 AM
Quote from: silk_91 on November 20, 2021, 04:25:33 AM
I am also interested, got this reply:
The CFR 515-D maximum tire clearance really only 25mm,
According to the regulations, the left and right sides need to reserve a 6mm gap, otherwise the tire will wear the frame.
 
FM 1056 Max tire size: 700*32mm

Why would a 6mm gap be necessary?
Title: Re: Carbonda 515-D
Post by: silk_91 on November 20, 2021, 08:10:27 AM
No idea, thats what she replied.
If you put a 28mm tire, the remaining gaps will be 4.5mm per side, is that enough?
Title: Re: Carbonda 515-D
Post by: jstrawks on November 20, 2021, 08:56:42 AM
Quote from: silk_91 on November 20, 2021, 08:10:27 AM
No idea, thats what she replied.
If you put a 28mm tire, the remaining gaps will be 4.5mm per side, is that enough?

I'd be perfectly comfortable with that, but what do I know? As far as I'm concerned, not rubbing is not rubbing.
Title: Re: Carbonda 515-D
Post by: Zdrenka89 on November 22, 2021, 01:07:46 AM
A wheel will deflect under acceleration and sharp cornering. Thats why the industry standard is 4mm. 6mm seems excessive. With stiff carbon wheels even 4mm is more than enough. 2-3 is ideal.