The product (Connex chain) was excellent. But the service from Bicycle Hero was poor. The website claimed that the item was "in stock." But it obviously wasn't as it took 40 DAYS for delivery! It appears that Bicycle Hero had to order it from the manufacturer in Germany and then eventually get around to shipping it to me. No tracking information was provided. Communication was slow. I will not use this seller again and suggest you think twice before buying from them as well. I should have paid more attention to all the other bad reviews others have posted.