do I need them and what are they for? ?

[Mike]

Right so iv gone and got a surly cc it comes with two screws n springs. I know where they go but im building it with gears so do I really need them n what do they actually do? ?

[johnnystorm]

Help with wheel placement/chain tension when SSing don't they?

Unless they bugger with the gears I'd put them in as A) The threads in the frame might fill with cack & B) I'd lose them for she I did eventually need them. C) if you do smash up your gears mid-ride you might want an SS get you home option.

[johnnystorm]

Just had a look at the frame, bolts go the other way than I thought, so (not for the first time) I'm talking bobbins. Wheelbase adjustment, isn't it?

[Mike]

What do u mean by the other way. Do they bolt in from the inside or the outside im not sure

[Bearbonesnorm]

Yep ... wheelbase adjustment. Set them so your wheel's central in the frame, then just leave them in place. It'll save much messing about when you get a puncture, etc

What do u mean by the other way. Do they bolt in from the inside or the outside im not sure

They screw in from the rear of the drop-out.

[johnnystorm]

What do u mean by the other way. Do they bolt in from the inside or the outside im not sure

I was thinking of the sort you get on track bikes.

[Ian]

The ones on my Kite bolt from the inside of the drop out, so the axle goes against the head of the screw.

[Bearbonesnorm]

[Mike]

Cheers guys glad I asked as I had them in wrong. Stu that pic makes sense!