Fresh Goods Sunday - Praxis - eCrank Set - Specialized Creo M30 Road - Carbon 172.5mm Part no - PR-EC-M30RD-1725C

 

I first seen these crank arms in the flesh at Biketreks Ings on an S Worsks Creo (which they still have after many years) and thought to myself by they would look like on my Creo. After buying my second Creo and using it for road use only I decided to purchase a pair of these bling carbon Praxis arms. As ever with everything in the bike parts market the rpp has gone up over the years and are now an eye watering £280 for the pair. Yes that is an astronomical amount of money for two semi mass produced cranks arms. I have paid less than that in the past for a full blown carbon chainset inc bottom bracket. Anyway they come in a box with a lovely foam cut out insert keeping them apart. The quality of the arms looks and feels brilliant. They are  highly lacquered and polished. Fitting is simple enough - remove your pedals from your old crank arms. Insert a 8mm long alley key as the existing ones are on tight from the factory. Crank the allen bolt and the arms will wind off. Clean the bb axle and surrounding area. The new crank arms come pre greased with a blue grease. I put some copper slip on the threads on the inside of the bb axle. Locate the crank arms onto the spins and tighten up the bolt to the correct torque setting 20Nm. Refit your pedals and your ready for the off. They look way better than the standard chucky alu Praxis model and you save a few grams- 68g (pair) on 172.5mm version - 34g per arm. Not that you ever notice that when riding in a million years. Another plus point is there is more heel clearance on the face of the arm. I did check the q factor as it looked a lot narrower but they are exactly the same as the alu version. After a few rides I cannot tell of any performance gains and I cannot feel any difference when riding but they look a lot better on the bike. 

RRP £280 and I paid £280 from Upgrade Bikes inc next day delivery 

Manufacturers Blurb - 

• For Specialized eBikes with “SL 1.1” motor using Praxis M30 spindle/spline.
• ROAD VERSION  -165/170/172.5/175 lengths. (For Creo SL family of bikes)
• MTN VERSION-160/165/170 lengths w/rubber boots. (For Levo SL family of bikes)
• M30 Alloy main crank bolt with self-extractor | 8mm Allen for Install/Removal | 50Nm torque
• Road 172.5 weight 340g   |   MTN 165mm weight 350g

MOTORS -  Check your Specialized motor spindle type.  These carbon eCranks are made for Specialized eBikes with "SL1.1" motors with M30 spindle interface.    (See spindle Pic above)

MAIN BOLT - The "M30/SL" eCranks with M30 spline use our M30 alloy Main bolt/Self extractor. 

Q- All eBike motors have different width spindles and this directly affects the Qfactor when the crank is installed.  The Qfactor when you install this eCrank on these motors :

• Q = 182mm :  When installed on LEVO SL or CREO SL family of bikes

Praxis warrants components to be free from defects in materials or workmanship for a period of 2 years after original purchase to the original owner.  However, there are limitations such as normal wear and tear…as “nothing lasts forever” so please read our full Warranty Page.