The Lekkie Bling Ring is a precision CNC machined chain ring that allows for a lower gear ratio and a better chain line than the stock 8fun chain rings provide. It provides a better chain line because its dished inward by 4 mm. This precision masterpiece pushes your chain line toward center as should be the case, instead of outward like other solutions on the market that unfortunately cause the chain to bend excessively as you use the bigger rear cogs. Optimal chain line needs to be pushed in toward the center of your rear cassette putting the chain in the middle so the chain stays straight when shifting to smaller or larger cogs and the Bling Ring does just that and does it with style. Machined with a Narrow Wide Deep tooth pattern the Bling Ring drastically reduces chain derailment and tooth degradation. With this chain ring you will have better gearing for climbing and more torque from take-off. Compatible with all chains and cassettes up to 11 speed. Machined from 7075 Aluminum and T6 hardened for durability. Colors available; anodized blue,black or Gold. See a review here.
Don't waste your time with other options out there for smaller chain rings (unless you have a long chain line such as a trike tandem or long tail bike such as ExtraCycle or Yuba Mundo...etc.... these adapters work well with long chain lines, but not standard chain line bikes). Those solutions only push your chain line outward and by quite a bit, over 1/2 an inch, way too much to be considered a legitimate solution for standard bike chain lengths. I have personally installed these "adapters" and witnessed first hand and heard testimonials from people who have purchased these adapters that report they are unsatisfied with the results because they can no longer use the bigger gears on the rear cassette due to the chain rubbing on the chain ring teeth which causes rapid wear and a noisy grinding sound. Do yourself a favor and get a precision made solution for lower gearing that keeps a correct chain line for the Bafang BBS02 mid drive motors, you will be glad you did and you will be satisfied with the results!
Chain ring spacers seen here.