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  • Re: Through Axle replacement Cervelo S5

    Emillio just goggle Tour aero bike test 2019 on weight wiennies and go to page one. It's in German so it takes a little time to figure out the data. Basically all the bikes are disc, the Cannondale had the lowest drag at 203 watts, Cervelo S5D 206, Venge 208 and Madone 212. All bikes are tested with 404's the Cervelo had RAT's which ...
    Posted to Forum (Forum) by rider2 on 04-09-2019
  • Re: Through Axle replacement Cervelo S5

    Emillo: Was talking about this years Tour test of the S5D not last years of the old S5 rim.
    Posted to Forum (Forum) by rider2 on 04-08-2019
  • Re: Through Axle replacement Cervelo S5

    Also, having built my 54" S5 Disc up from a frame would like to say mine weights 14.6lbs with garmin 500 head unit and my speedplay pedals attached (no bottles) with my tubulars (44Fx55R) and 15.6lbs with my clinchers (44Fx50R) Conti 28's. As far as I can tell the Venge frame actual is only 10g's lighter than the same size S5D. ...
    Posted to Forum (Forum) by rider2 on 04-08-2019
  • Re: Through Axle replacement Cervelo S5

    Well received my front threaded through axle with nut part # LIG519.C from the Robert Axle Project. As anyone knows who has a new S5 Disc and want to replace the RAT through axle there really was not to my knowledge a threaded alternative. I would just like to say the Robert Axle Project threaded front axle replacement (with custom nut) is very ...
    Posted to Forum (Forum) by rider2 on 04-08-2019
  • Re: Through Axle replacement Cervelo S5

    Thanks Emillio! If you have success you could make an extra which I could purchase from you if you think its an improvement over the Robert Axle nut. Sounds like your trying to make it more integrated and lower profile which would be nice. Cheers
    Posted to Forum (Forum) by rider2 on 03-06-2019
  • Re: Through Axle replacement Cervelo S5

    Emillio The Robert Axle group is supplying me with a nut just produced which sit's proud 8mm on the front axle after replacing the RAT fastener. On the other fork it will be flush of course. Total weight with through axle and nut, 35g. This replaces the 61g RAT through axle and the plastic adapter of 4g's or so. On the rear wheel, as I ...
    Posted to Forum (Forum) by rider2 on 03-05-2019
  • Re: Does C5 have a stiffer frame that a S3 Disc

    I will tell you the little I've been told, but Cervelo is the correct source to answer this. If you compare the S5 (gen 2) with the gen 2 S3 (not the 2019) the S3 had a thicker wall structure used to attain likely 95-98% of the strength of the S5 at its price point. I believe Cervelo considered the S3 a great crit bike, tough and robust. ...
    Posted to Forum (Forum) by rider2 on 01-18-2019
  • Re: Through Axle replacement Cervelo S5

    Agree that on flat's weight just not an issue. I've learned over time that if wheels are too light they just do not conserve momentum on the flat's. Prefer wheels around 1300 gram's with most of their weight in the rim as they hold speed on the flat's and still climb very well. Using the 44 front as is fairly aero but also ...
    Posted to Forum (Forum) by rider2 on 01-11-2019
  • Re: Through Axle replacement Cervelo S5

    Don, yes the RAT's are quite nice and functional. Just I'm building my S5 to 14.5 lbs which isn't difficult but the RAT's weight 61g F, 68g's R as compared to approximately 60g combined for F&R bolt on through axles. They are low hanging fruit! In Collingwood only have a flat once every two years but in Florida where ...
    Posted to Forum (Forum) by rider2 on 01-11-2019
  • Re: Through Axle replacement Cervelo S5

    I have bought a threaded axle from the Robert Axle Project for my S5 front RAT replacement. They have indicated they can supply a bolt for their front axle. Likely an additional charge above the axle but it looks like problem solved.
    Posted to Forum (Forum) by rider2 on 01-06-2019
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