When upgrading or replacing a wheel or wheelset there are a number of factors to take into consideration, including not only the size of wheel your bike is designed for, but also characteristics such as weight, rim width, spoke number and hub type, etc.
![BONTRAGER CONNECTION 27.5 BOOST 6-BOLT DISC REAR MTB WHEEL [7-SPEED] *](http://www.allterraincycles.co.uk/Images/ExtraLarge/157077_1.jpg)
![BONTRAGER CONNECTION 27.5 BOOST 6-BOLT DISC REAR MTB WHEEL [8/9/1-SPEED] *](http://www.allterraincycles.co.uk/Images/ExtraLarge/156564_1.jpg)
