Description:
100% Brand new and high quality!
Narrow-wide tooth profiling prevents chain drop without a chainguide
√Process: Full CNC CNC engraving and milling, anodic oxidation, full of the laser marking
√Function: Minimize the probability of chain, simplifying the variable speed system, minus the excess weight
It is protable and durable.
Easy to use and to operate.
Positive tooth corresponding chian tooth width; tooth corresponding negative chain is narow.

Suitable for most of the Shimano BCD Models,and some FSA, Sram models.
Like:SHIMANO M391/M430/M590/M610/M615/M670/M675/M770/M780/M785/M980/M640/M820

Specification
Brand: DECKAS
Color: Black/Red/Blue/Gold/Green/Silver
Shape:Round/Oval
Material: 7075-T6 Aluminum alloy
BCD: 104BCD
Chainwheel Teeth: 30,32T, 34T, 36T, 38T,40T,42T,44T,46T,48T,50T,52T
Thickness: 4mm---1.9mm(narrow),3.7mm(wide)      The diameter of the hole: 10.1mm
Compatible with: All 7 to 12 speed chain
Round Chainring Weight: 30T（37g）/32T（39g）/34T（48g）/36T（58g）/38T（72g）/ 40T（72g）/42T（84g）/44T（93g）/46T（105g）/48T（118g）/ 50T（130g）/52T（145g）
Oval Chainring Weight:32T（39g）/34T（47g）/36T（58g）/38T（73g）/40T（70g）/42T（82g）/44T（92g）/46T（104g）/48T（116g）/50T（129g）/52T（142g）

Package Including:
- 1pcs Round/Oval 104BCD Chainrings(Need Choose)

Note:
1. Be sure to measure the BCD before buying
2. This chainring can only be used for single-speed crankset
3. Please 100% sure that your Bicycle BCD is 104mm before you do the payment. Thank you！