the entire time ive had bikes they have been fairly cheap, except my gt, and fairly heavy but they put up with my abuse and constant crazy of roading just fine
ive always had stuff like this and they survived well to the huge punishment of jumping off rocks and high verges plus its cheap so if it breaks just get another 1
http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_752213_langId_-1_categoryId_165499
although saying that i was looking at 1 of these also, i dont think its suited realy for offroading like i do as id need rear suspension so my spine doesnt explode hitting the ground
http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_712167_categoryId_165499_langId_-1?cm_vc=IOV4PDPZ1