2020 Specialized Tarmac SL7

[Sleeprequired]

Can someone please explain to me how 35mm wide front rim is somehow faster than a 28-30mm wheel.

I'm open to it but I'm trying to decide on wheels / enve vs roval but I just can't believe the rovals would be faster being that wide.

[Ronin416]

Got a deposit down at my LBS for a 2022 SL7 Expert. Was told best case I can expect it Q2 2022 but most likely sometime Q3 2022. Swapping the bars for ENVE aero.

Trying to decide now if I should stick with the Rapide C38 wheels, or upgrade. If I upgraded I'm leaning towards ENVE SES 4.5 AR or maybe HED Jet 6. Not sure how much of an upgrade either is, I'm pretty unfamiliar with wheels. Might have to check out the Roval CL50s as another option.

Hyper wheels, carbon spokes wheels weight similar to CLX 50 with ceramic bearings for $1200 - days are numbered for wheels over $2000


Sent from my iPhone using Tapatalk

26mm wide wheels are so 2015 or so.. no thanks.

Yes ARs or HED's would be an upgrade in my opinion.. although if you go HED, look at the newer RC line.

The wider wheels are great for riders who ride at slower speeds and handle better. Just look at Swissside’s previous design philosophy. Plus the marketing fruit punch are pushing wider wheels.


Sent from my iPhone using Tapatalk

[tjvirden]

Can someone please explain to me how 35mm wide front rim is somehow faster than a 28-30mm wheel.

I'm open to it but I'm trying to decide on wheels / enve vs roval but I just can't believe the rovals would be faster being that wide.

A new topic would be ideal, but.......it mainly depends on the distribution of yaw angle (actual direction of airflow) that the wheel experiences. If the airflow is always head-on (0 degrees) then a narrower rim/tire will be faster from the aerodynamic perspective; it's still subject to a rolling resistance difference though. Once the yaw angle is variable and more than a few degrees, then the shape of the rim/tire becomes important and drag can decrease significantly with the appropriate shape - in other words, the shape becomes more important than the absolute size.

However, it's not just about speed for wider rims! Shape has a substantial effect on the lateral force generated by the rim - wider, blunter rims (used as a front wheel) are usually much easier to control with a high yaw angle (20+ degrees); the lateral force is lower and less variable.

This control aspect, in crosswinds, is normally much more noticeable than the drag difference between similar rims - for me that's the real benefit of "wide" rims.

Don't expect to be able to detect a speed difference between rims from just riding your bike.......

[Sleeprequired]

Can someone please explain to me how 35mm wide front rim is somehow faster than a 28-30mm wheel.

I'm open to it but I'm trying to decide on wheels / enve vs roval but I just can't believe the rovals would be faster being that wide.

A new topic would be ideal, but.......it mainly depends on the distribution of yaw angle (actual direction of airflow) that the wheel experiences. If the airflow is always head-on (0 degrees) then a narrower rim/tire will be faster from the aerodynamic perspective; it's still subject to a rolling resistance difference though. Once the yaw angle is variable and more than a few degrees, then the shape of the rim/tire becomes important and drag can decrease significantly with the appropriate shape - in other words, the shape becomes more important than the absolute size.

However, it's not just about speed for wider rims! Shape has a substantial effect on the lateral force generated by the rim - wider, blunter rims (used as a front wheel) are usually much easier to control with a high yaw angle (20+ degrees); the lateral force is lower and less variable.

This control aspect, in crosswinds, is normally much more noticeable than the drag difference between similar rims - for me that's the real benefit of "wide" rims.

Don't expect to be able to detect a speed difference between rims from just riding your bike.......

Yeah I've currently got 56mm rims and they're a cross between traditional V shape and U shape.

LightBicycle wr56 to be specific and they're fast. I think 30mm wide and 23mm internal width running gp5000 25c.

I'm a Bit concerned these will actually be slower. It would be a shame to drop that much coin on slower rims

I am rarely troubled by stability or lack Thereof but I notice other riders can be put off by it.

[leejhayward]

Presumably you'd recommend these over the Dura Ace / other shimano offerings?

Looking for a new set to replace some warped Dura Ace rotors

Yep, Galfer Wave CLD 160/140.

[ryanw]

Yep, I find them much better dealing with my
88kg frame. Don't warp anywhere near as bad as DA / XTR rotors.

[leejhayward]

Great thanks, 83kg here so the 160mm on the front has proven particularly susceptible to warping on some of the long descents here in Turkey, especially in the hot temperatures. Are you aware of any UK based dealers that are supplying them? I'm back in the UK in the next couple of weeks.

Cheers,
Lee

[ryanw]

I've got some stock coming in this week...

[K4m1k4z3]

Does anyone know if all the 2022 bikes come with the updated (cleaner looking) seatpost? I mean, they could, since the new Dura Ace and Ultegra no longer require a junction box.

The 2022 specs say:
2021 S-Works Tarmac Carbon seat post, FACT Carbon, 20mm offset
While for 2021 models they say:
2021 S-Works Tarmac Carbon seat post, FACT Carbon, Di2 Compatible, 20mm offset

[ryanw]

Yes they do. RS910 junction box is now in the Roval Rapide drops.

[K4m1k4z3]

Yes they do. RS910 junction box is now in the Roval Rapide drops.

Does this apply only to framesets or complete bikes as well? I only ask because you mentioned the RS910 and the completes no longer come with it.
The 'early-launch' 2022 Rival AXS Comp models appear to have been delivered with the Di2 seatpost with a blanking plate.

[ryanw]

All 2022 full builds AXS & Di2 shall have standard clean seatpost with charging via rear mech on the Shimano bikes.

All 2022 framesets shall come with clean seatpost and RS910 shall have to be bar mounted if using 11 speed Di2. However, you can still buy the normal post with Di2 bung.

Latest Sagan frame (2021) also came with the new clean post.

[Theguy]

No one is talking about the recall for tarmac sl7 owners?

https://www.cyclingweekly.com/products/ ... -sl7-bikes

[spdntrxi]

No one is talking about the recall for tarmac sl7 owners?

https://www.cyclingweekly.com/products/ ... -sl7-bikes

there is a whole thread on it.. It should be kept separate from this one.

[reimns]

My black and white, glossy finish ( 2021 )