Does the 2009 SR Suntour Rux have 20mm Thru Axle? Also for this fork 2008 Sr Suntour SF7 XCM?
no they do not they have a leading axle design Suntours 20mm thru axles have 20 in their name for example SF8-DURO FR20 SF9-DUROLUX 20 TS SF9-DUROLUX 20 1.5 are all 20mm through axle designs not sure the actual measurement of a lead axle design but if your looking for a 20mm the sf7 scm is not the one for you.
May 28, 2018
I would recommend upgrading from SR Suntour forks, they are a pretty poor fork. If your budget it £300 then potentially you could pick up some Fox forks, which are generally accepted as the best fork around however you'd be getting them second hand. But they are a VERY good fork. Alternatively, look at DT SWISS forks or Rock Shox, the latter being the cheaper forks of the two. When buying a fork you need to make sure the travel of the fork isn't too much for your bike, you can find this out on the scott website most likely. The reason for this is that frames are made for a certain size fork (in your case most likely 100mm), by sizing up to a fork with larger travel you change the geometry of the bike frame thus changing the angles and distribution of force onto your downtube, which can result in a breakage. You should be able to get away with something like a 20mm increase in fork travel any higher could be dangerous, but of course you need to check what your frame can handle, try looking in the manual. You also need to measure the steerer length, which is the piece of the fork that goes through your frame, make sure that the forks you purchase steerer is long enough to go through your steerer tube and accomodate a stem and headset. You need to measure your current steerer and width of your components to check this.
May 28, 2018