Road Cycling
- Thread starter FrenchTart
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Good luck & pics if you do lol
http://www.cyclingweekly.com/news/product-news/road-bike-thru-axle-standard-yet-308139
SCS from Specialized is Short Chain Stay they introduced with Disc brakes to retain the chainstay the same as the rim brake variants to keep the responsiveness and handling the same Disc:Rim.
The Tarmac, Diverge, Roubaix and Crux all had them. Although don't think the current ranges do after flat mount calipers came out?
Not totally sure what the Cannondale SCS is, I think it's totally different?
my bad it is cannondale Ai, which is assymetric integration.
Blurb is
Cannondale say: we introduce to SuperX range the all-new, Ai, asymmetrically offset rear triangle and drivetrain. The offset shifts the rear hub and drivetrain 6mm to the right, delivering super short chainstays without any of the usual compromises and a rear wheel that is dramatically stiffer and stronger because the spoke tension and angles are equal on both sides.
Blurb is
Cannondale say: we introduce to SuperX range the all-new, Ai, asymmetrically offset rear triangle and drivetrain. The offset shifts the rear hub and drivetrain 6mm to the right, delivering super short chainstays without any of the usual compromises and a rear wheel that is dramatically stiffer and stronger because the spoke tension and angles are equal on both sides.
Does it mention anything about the hub width being different?
The big problem with Specialized's SCS is the hub width being around 137mm. Outside of Specialized Hope where the only others to build a 'SCS hub' so wheel options where really limited - Specialized Axis, Specialized Roval or custom built.
Using a 142 endcap one side and a 135 the other gets pretty close, close enough there's enough 'give' in the frame to squeeze it in and the disc to clear the chainstay. Loads of Diverge owners have done this as you're only limited by the Hubs being used having endcaps available.
Going full 142 the cassette is jammed against the dropout/hanger, going 135 you cannot get the disc calipers over far enough to centre on the disc. I actually bought a non-SCS hanger to convert my Diverge to 135 hubs - which works but then I'd need to use washers to shim my disc over to the calipers, obviously only possible with 6-bolt (at the time I was looking at replacing my Centrelock SCS hub in my Axis wheelset). #nightmare
The big problem with Specialized's SCS is the hub width being around 137mm. Outside of Specialized Hope where the only others to build a 'SCS hub' so wheel options where really limited - Specialized Axis, Specialized Roval or custom built.
Using a 142 endcap one side and a 135 the other gets pretty close, close enough there's enough 'give' in the frame to squeeze it in and the disc to clear the chainstay. Loads of Diverge owners have done this as you're only limited by the Hubs being used having endcaps available.
Going full 142 the cassette is jammed against the dropout/hanger, going 135 you cannot get the disc calipers over far enough to centre on the disc. I actually bought a non-SCS hanger to convert my Diverge to 135 hubs - which works but then I'd need to use washers to shim my disc over to the calipers, obviously only possible with 6-bolt (at the time I was looking at replacing my Centrelock SCS hub in my Axis wheelset). #nightmare
Tempted to get out again on Sunday for a coffee & chinwag at Rapha but it's going to be 1 degrees and feel like -4 according to the Met Office due to 12mph wind with 20+mph gusts.
Figuring if I wrap up well enough and think warm thoughts I can make it to & from (an hour each way) without it being too miserable
Figuring if I wrap up well enough and think warm thoughts I can make it to & from (an hour each way) without it being too miserable
Nah it just looks like it dished to the right 6mm, so gives an evenly tensioned wheel. Luckily no fancy dancy wheels needed, just tuned slightly different.
OK, so my CX bike currently has 50/34 rings up front. Fine with road tyres, not great with CX tyres, woeful with ice tyres. I've picked up a set of 46/36 CX rings (from bike 24 in Germany, who managed to deliver in 2 days flat) and I'm going to swap them over.
I assume it's not worth adjusting the chain length for a small change like this? Granted it's 4 teeth down on the big ring, but it's 2 teeth up on the small one, so probably not worth fretting about, right?
I assume it's not worth adjusting the chain length for a small change like this? Granted it's 4 teeth down on the big ring, but it's 2 teeth up on the small one, so probably not worth fretting about, right?
Soldato
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- 16 May 2007
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Specialized scs if you have QR scs just needs the gear hanger changed to non scs and you can choose wheels normally. The bolt through version is a bigger pain.
Ahhh, I had thought you where using bigger tyres already but wasn't sure just how wide! 38mm, plush!
I can confirm that plush is a good description! That is despite me having to run them at a very slightly higher pressure than my old 35's as the minimum recommended pressure is 45 PSI and I used to run my front at 40. They looked pretty huge once fitted, much more so than I'd have imagined coming from tyres that are supposedly only 3mm smaller.
They take a noticeable amount of effort to get rolling from stand still but it is rare that I come to a complete stop even on long rides. Once on the move though they roll incredibly well and intercept so much roughness from the road. Unless I get a lot of punctures to sour the relationship these are keepers!
Weird advantage I wasn't expecting is that the little pins on them don't hold on to mud and water like my other tyres so the bike stayed much cleaner than normal despite taking it on some very mucky sections and some light off road stuff.
My trusty Edge 200 was bleeping that it had a low battery just 18 miles into my ride today having been fully charged and not used just a few days ago, so that seems to be on its way out 
I've been trying to decide between an Elemnt Bolt and Edge 520 all day but ended up sticking with Garmin as I use a fenix 3 HR daily so I can keep all my data together. Performance bundle with HR strap, speed and cadence sensors for just shy of £200. I don't need any of the accessories so I'm hoping to claw back around £50 by selling those on.
I've been trying to decide between an Elemnt Bolt and Edge 520 all day but ended up sticking with Garmin as I use a fenix 3 HR daily so I can keep all my data together. Performance bundle with HR strap, speed and cadence sensors for just shy of £200. I don't need any of the accessories so I'm hoping to claw back around £50 by selling those on.
...and I just cancelled it and ordered an Elemnt Bolt insteadMy trusty Edge 200 was bleeping that it had a low battery just 18 miles into my ride today having been fully charged and not used just a few days ago, so that seems to be on its way out
I've been trying to decide between an Elemnt Bolt and Edge 520 all day but ended up sticking with Garmin as I use a fenix 3 HR daily so I can keep all my data together. Performance bundle with HR strap, speed and cadence sensors for just shy of £200. I don't need any of the accessories so I'm hoping to claw back around £50 by selling those on.
I've been researching the two for months and everything pointed towards the Bolt being better for my needs. Two things swayed me to the 520 1) It would have been a bit cheaper (assuming I got a good price for the accessories) and 2) I've always had Garmin.
In the end though I decided to get the best tool for the job. With discounts and cashback it will be about £184 which isn't too bad and the Edge 520 wouldn't have sync'd with my fenix 3 anyway so by the time I sync Strava with Garmin Connect the difference of using a different brand is minimal.
...and I just cancelled it and ordered an Elemnt Bolt instead
Good man!!!! Excellent choice, you won't regret it!
Weather looks shocking this week. I’ve replaced the chainset on my cx bike with a 46/36 so that’ll make things a bit easier with my ice tyres. I need to replace the gear cables at some point, but not tonight Josephine.
I got to the bottom of why one wheel set was shifting better than the other - different spacers behind the cassettes. I’ve made sure they’re the same now, so they should be ok.
I got to the bottom of why one wheel set was shifting better than the other - different spacers behind the cassettes. I’ve made sure they’re the same now, so they should be ok.
Soldato
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- 16 May 2007
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Had fun today going downhill at about 30mph, hit in the side by a strong wind and hail storm.
That was painful until I slowed right down, the right side of my face is now fully exfoliated
That was painful until I slowed right down, the right side of my face is now fully exfoliated
Ahh, yeah that does make life loads easier!
In theory my 30 Course are off centre by approx 2mm due to my mixing of endcaps. They don't look it and you can barely make it out even lining up the centre line of the tyre with the middle of the mudguard. Although 6mm is much further over, you'd probably notice if you didn't redish! Should all be ok with spoke lengths as I've offset a wheel much worse than 6mm when playing around building up tension wrongly lol
The majority of the Specialized frames with SCS are Carbon and use thru axles (Roubaix, Diverge, Crux), only the generally cheaper alu versions of the same models have QR and they are generally not SCS! Think only the Crux alu is QR & SCS.
3mm isn't a huge difference but the air volume behind that is, hence the higher pressure! Much weight difference? If they're heavy with much more rolling resistance due to the different tread that might explain the extra effort required.
I did have a communication issue with mine, it's well worth cleaning the popper contacts. I found with mine as I generally only unpop the one side the other gathered some 'fluff' and eventually some of it had worked it's way into the contact. Good clean and it was back to normal!
Worth trying a known good battery, I had a bad batch at one point with 2-3 duff ones (tend to buy Panasonic ones in a card 'sheet', 10 a time). My PWM & cadence sensor also use them so I tend to have a stock!
Good choice! The change Garmin->Wahoo is quite weird, you'll get to the point of asking yourself 'Have I set up eveything? Feels like I've missed a load of things', but that really is it....and I just cancelled it and ordered an Elemnt Bolt instead
Oooosh! Good job staying on! I hid inside this weekend as things where miserable saturday morning... Got some stick for turning into a 'fair weather rider' from the usual suspects, but then they cut their planned ride short from 40 to 28 miles (and only 2 of them even complete that!) I knew I'd made the right choice!
Emptied myself on a Zwift 160km 3.0w/kg endurance ride on saturday morning, couple of drops & losing a wheel or two I was really struggling to jump back to the group each time. Eventually gave in at around 45 miles and rolled around solo to clock it to 62 miles (100km). Good volume and hopefully just what I need to get myself back on track.
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Just how 'real' are those Zwift miles compared to road riding? I mean, 24 mph average over that distance just sounds super human to me. Then again I'm very amateur compared to you lot!
Just how 'real' are those Zwift miles compared to road riding? I mean, 24 mph average over that distance just sounds super human to me. Then again I'm very amateur compared to you lot!
About as real as Unicorns.
Damn cold again this morning, -2, but still no ice. Quite a hard dry frost in places and pretty sure I saw some darker patches in the tarmac under some trees, looking suspiciously like black ice. Be careful all!
They're a bit meh. I consider them roughly the same as I'm generally riding the turbo harder for longer periods than I am when riding outside this time of year. The actual speed is hard to judge as riding in a 50+ rider huge close peloton along almost perfectly flat roads with no wind, potholes or junctions isn't something I've got experience of outside of Zwift.
My legs after that 60 miles felt roughtly similar to a saturday social ride which is generally 20 miles less, an hour longer and another ~1500-2000ft of elevation. With avg HR & power being quite a bit higher on Zwift.
Just how 'real' are those Zwift miles compared to road riding? I mean, 24 mph average over that distance just sounds super human to me. Then again I'm very amateur compared to you lot!
They're a bit meh. I consider them roughly the same as I'm generally riding the turbo harder for longer periods than I am when riding outside this time of year. The actual speed is hard to judge as riding in a 50+ rider huge close peloton along almost perfectly flat roads with no wind, potholes or junctions isn't something I've got experience of outside of Zwift.
My legs after that 60 miles felt roughtly similar to a saturday social ride which is generally 20 miles less, an hour longer and another ~1500-2000ft of elevation. With avg HR & power being quite a bit higher on Zwift.
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