Fit FAF Tyre Puncture Resistant Kevlar Belt: RRP £39.99 The excellent Fit FAF Tyres have different treads and behaviours, depending on which size you choose. 2.25" & 2.3" Wide and solid with raised tread and smooth, thick sidewall; Durable & forgiving with outstanding grip 2.1" Light, smooth, predictable, and stable; Large footprint with knurled sidewall, Unbroken center tread 1.95"(Recommended for use on rear only) Super light, precise, and responsive; Low profile with knurled sidewall, Center speed groove Kevlar Bead