Thomson X4 Mtn Stem (31.8) 0d x 90mm Black CheckoutSpec= Grip X For original Gen1 Praxis cranks

For original Gen1 Praxis cranks

Size 42t and larger will work with the Dura Ace 9100 power meter

Tread design offers excellent traction and cornering in just about any terrain without the penalty of high rolling resistance or fast-wearing tread compounds

Includes air can tokens seals & decals

Thomson X4 Mtn Stem (31.8) 0d x 90mm Black CheckoutSpec= Grip X For original Gen1 Praxis cranksCNC machined from 1 piece 7000 series aluminum (no welds) X4 dress up kits can add color to any 31. 8mm X4 stem, available separately use TP105* 48mm wide 4 bolt faceplate. 147g (70mm) Model X4 Steerer Dia. 1 1 8" Bar Dia. 31. 8mm Rise 0 Deg Length 90mm Color Black