Veloci Cycles has always believed that most vintage mountain bikes are still excellent machines at heart. The frames are solid and the geometry remains superb—they just need a few minor updates here and there to feel right again.
That’s where the ROLLCii BCD104 1x chainring (4-bolt mount) comes in. It is machined from a 4 mm thick 7075-T6 aluminum plate, removing excess material while maintaining structural integrity in critical areas. The "narrow-wide" tooth profile ensures secure chain retention and is compatible with most 9- to 12-speed chains from various manufacturers.
No complicated installation, no guesswork. Just mount it and ride— and you’ll likely remember why you kept this bike in the first place.
Specifications:
- Material: Machined from 7075-T6 aluminum plate
- Teeth: 32T, 34T, 36T, 38T, 40T
- Required chainring bolts: 6 mm (not included)
- Orientation: Mountable on either side of the spider
- Weight:
- 32T: 23 g
- 34T: 44 g
- 36T: 55 g
- 38T: 67 g
- 40T: 79 g
- Colors: Black, Silver, Lavender, Gumwall, Metallic Gold, Slate, Tangerine Fire, Water Blue, Flamingo Pink
- Compatible chains:
- Compatible with all 9-/10-/11-speed chains
- 12-speed chains from SRAM (Eagle and T-Type)
- KMC
- Shimano (HG+)
Product safety information
Manufacturer information:
Veloci Cycle
Chung Shiao W. RD. No.72 SEC.1
Taipei City, Taiwan, RM11-13
info@velocicycle.com
https://www.velocicycle.com
Responsible person:
Goldsprint
Sterntalerstr. 25b
Berlin
Berlin, Deutschland, 12555
info@goldsprint.de
http://www.goldsprint.de