Cervélo R3 Hill Climb Special

[cyberknight]

Cracking anxiety fuel for those of us who sometimes like to jump to the drops with both hands at once

i meant merely as a weight saving measure for pure hill climbing as most folk dont tend to ride on the drops for that , unless your Pantani

 

[Legs]

Damn! The 11g single-length titanium chainring bolts I’ve just put in are heavier than the doubles I’ve taken out!

 

[Legs]

I’ve fitted this 56g 38T n/w chainring in lieu of the 143g of 50T/34T that are now residing in the shed.


I’ve saved only a measly 83g by removing the SRAM Red front mech - that’s the problem with having high-end kit to start with!

The front mech hanger is riveted on, and it’s a bit of a one-way street to drill the rivets out, so I’m keeping that on 🤔

 

[wafter]

i meant merely as a weight saving measure for pure hill climbing as most folk dont tend to ride on the drops for that , unless your Pantani

Indeed, although it would always weigh on my mind that one day I'd just casually, reflexedly drop from the tops onto.... absolutely nothing

 

[Legs]

Indeed, although it would always weigh on my mind that one day I'd just casually, reflexedly drop from the tops onto.... absolutely nothing

There’s nothing casual about racing a hill climb!

 

[Norry1]

Nice project. Well worth it when you can bang out your times

 

[Mr.B-Campag]

Change the left brifter to a standard brake lever?

 

[Legs]

Change the left brifter to a standard brake lever?

Possibly... I'm a bit reluctant to do this because of the weird feel and look of having different brakes. This suggests that the SRAM Red LH shifter is only around half of 280g (maybe less - I'd assume that the RH lever has more gubbins inside?). I'd be doing well to get a standalone brake lever for less than 140g. I've only got one mid-90s lever knocking about in my shed - it looks terrible but weighs 155g - and I don't have my own pillar drill to do the drillium thing. I don't really want to 'gut' the existing lever in case I ever want to change back or sell the bike. I could buy a LH Rival lever for £50 - maybe less on eBay - which is quite steep to save 10g!

The standard practice, I believe, is to keep a bit of gear cable inner intact, route it underneath the brake lever clamp, pull it taut and trap it so that the gear lever doesn't move or rattle.

 

[Mr.B-Campag]

https://www.ebay.co.uk/itm/33619335...8rmUwlr0ftA==|tkp:Bk9SR-bmgLKvZg&LH_Auction=1

You could put in a £20 offer for this. But I grant you this is serious marginal gains territory!

 

[Legs]

https://www.ebay.co.uk/itm/336193351029?_skw=sram+brake+lever&itmmeta=01K5XJ06D25J8VYXPYCF92VYZE&hash=item4e46af6d75:g:ktEAAeSwEiRn7Vf-&itmprp=enc:AQAKAAAA8FkggFvd1GGDu0w3yXCmi1fYWdc+UgEVJp7bhVYRXxwHWeKPTTqDhi9wBIVUgIiznu4vbDjZMb5aZ5q5Td14bkWq0rJpLIv29AI8wTV7TIpvAxuc6prFfHqdnJYn3zIMqRTRGtBHccSeM+ZGimXraQCLlwR56nSLen5Agv5vhKWl+Jj82tT05hcr1n9cEi9ZAmOUt+zTphKL2VVVfvC4hCxcnSKRgIk4Sr/OUE51GGOU0zz+ssNKk9igI0hCCd4VK74CdLfGSl7h3XlcRBgSj3u0ZuWVncchuNamBeLAnc+ZYFOuKeaFkLu8rmUwlr0ftA==|tkp:Bk9SR-bmgLKvZg&LH_Auction=1

You could put in a £20 offer for this. But I grant you this is serious marginal gains territory!

I offered £25 and it's coming later this week! Thanks

 

[Legs]

So I got as far as fitting the new chainring with the new heavy bolts yesterday, and I’ve removed the front mech and the chain (which I can afford to shorten now - another little saving which you can be sure will be documented).


The eagle-eyed among you will notice that I’ve also swapped the saddle for this rather sexy sub-100g AliExpress model:


This was nice bar tape, but at 110g(!), it had to come off.


I’m replacing it with this stuff:

 

[Legs]

I need to source a suitable grommet to fill this hole on my downtube…


…and this little one here:


This morning I took the opportunity to clean my grotty chain:



Result! 2g of grot removed!

 

[raleighnut]

I need to source a suitable grommet to fill this hole on my downtube…

View attachment 788082
…and this little one here:
View attachment 788083

This morning I took the opportunity to clean my grotty chain:
View attachment 788084

View attachment 788085
Result! 2g of grot removed!

Swap the chain for a 'hollowpin' one ?

 

[Ming the Merciless]

Possibly... I'm a bit reluctant to do this because of the weird feel and look of having different brakes. This suggests that the SRAM Red LH shifter is only around half of 280g (maybe less - I'd assume that the RH lever has more gubbins inside?). I'd be doing well to get a standalone brake lever for less than 140g. I've only got one mid-90s lever knocking about in my shed - it looks terrible but weighs 155g - and I don't have my own pillar drill to do the drillium thing. I don't really want to 'gut' the existing lever in case I ever want to change back or sell the bike. I could buy a LH Rival lever for £50 - maybe less on eBay - which is quite steep to save 10g!

The standard practice, I believe, is to keep a bit of gear cable inner intact, route it underneath the brake lever clamp, pull it taut and trap it so that the gear lever doesn't move or rattle.

You can get a pair of IRD brake levers weighing 137g a pair. Thus 68.5g per lever.

 

[Legs]

You can get a pair of IRD brake levers weighing 137g a pair. Thus 68.5g per lever.

I mostly climb on the hoods, so that’s not going to work. Plus they look absolutely dogshit, like the kind of thing mickle would put on a bike.