New chain loading, in the end how long?

How is the length of the chain? For this problem, many riders and car shop have their own understanding, different brands have their own set of methods, currently widely circulated more widely with large hanging speedboats to stay two or stay in fourth quarter; market hanging boats, dial through the chain, guide wheel connecting line is perpendicular to the ground; small cap hanging boats, dial through the chain derailleur just tension and so to say. So in the face of increasingly rich variety of variable speed system, how to decide the length of the chain? In this small series of finishing a part of official information, I hope to help friends.

SHIMANO system: two ways to determine the length, respectively, applied to five kinds of variable speed system settings.

Highway system disk, the biggest flywheel is more than or equal to 32t: the chain hanging on the maximum disk and maximum flywheel and connected to increase two link highway system disk, maximum freewheel is equal to or less than 30t: chain through the rear derailleur, hanging on the maximum disk and minimum flywheel, the guide wheel and a tension wheel connecting wire and ground into 90 degrees, or slightly larger than 90 degrees.

Dual disc highway system, maximum freewheel is more than or equal to 28T: chain hanging on the maximum disk and maximum flywheel, two link highway double disk system increases with the connection, maximum freewheel is less than or equal to 27T: chain through the rear derailleur, hanging on the maximum disk and minimum flywheel and the guide wheel and a tension wheel connecting line and the ground at an angle of 90 degrees, or slightly greater than 90 degrees.

Mountain bike, car travel: the chain hanging in the largest disc and the maximum flywheel, after adding two link connection. Apply to the former single, double disc, three disc.

For Shimano system and need to pay attention to several points: the first is the chain of positive and negative, the word side outwards; the second point is generally encountered the riders usually are a direct replacement chain, chain connection, be sure to remember is the inner link chain pulling the outer link, as shown above, the outer link in the former (right), in the link (left). Finally, if due to changes in the teeth of the flywheel disc set, you need to change the length of the chain, please in pin connection other than the position of cutting.

SRAM system is also divided into two kinds of situations, relatively simple and more than SHIMANO.

For 9, 10 and 11 of the speed control system will chain hanging on the maximum disk and maximum flywheel and chain overlap add a link, and a link.

For 1*11 speed system: the chain hanging on the maximum disk and maximum flywheel and chain overlap add two inner link and two link.

If riders of the transmission system to do the special setting, such as to replace other brands to provide disc and a flywheel expand tablets and the length of the chain need to set according to the actual situation. If it is with the rear suspension models, the rear suspension in the action, tail hook relative position and five pass center will change, if the chain is too short, drive system may is applied too much load and impact shock absorber of the operation.