Hello all
I've been reading this forum for a while now (few years) and found so much useful / practical / real world info, thank you for that
Couldn't find explicit answers to those questions elswhere and I would appriciate to hear opinions and insights coz im pretty green compared to folk here....
So...
It would be the one and only bike, I don't race and most likely never will. Longest single day ride was 400-ish km, weekend ride about 780, so I dont really want to have a tank capable of carrying 200kg since I wont be doing any kitchen sink touring.... Audaxish or not too much bent over roadish geo would do.
Frame will be Ti, most likely custom and builder has been decided, straight or slightly sloped TT is fine, I MIGHT add di2 option (but wont use it atm, more on that later) since it adds little to the build price and the inevetable re-invention of tripple is just few short years ahead... di3 and few other standards for sure
It has to fit 32mm tyres for winter and ofc guards... I would be ok with 28s for summer but in winter I'll run those
https://www.cykelkraft.no/dubbdack-622-32-28-nokian-240-dubbOn current bike I'm on 32mm gp5000 and like them... So those can stay as fair weather tyres
32/36 wheels, silver spokes, brass nipples, laced to front dyno hub... Lets say SON for now... If discs, rear would be Shimano FH-RS770 and gray hard-ano archetypes.
And now the dilemas...
I wanted to get rim brakes for this bike(VO Gran Cru's) but I will most likely end up with discs because winter conditions here are long + in combination with salty granite grinding paste I belive those brakes would have quite an appetite on the rims
On my current bike I have cable discs (bb5... Thebad ones... I know), and they are more/less fine, tryed bb7... Quite nice ... Also tryed hydro and really like stopping power, however... Hydraulic (IMHO) has some issues + industry driven marketing rape that really puts me off... Ofc that won't stop me from using them if they turn out to be best option
So...
1. Is there ANY hydro system (road or mtb) that lets you set pad clerance and then auto adjustment keeps that clerance? I dont see a point of perma (lets say 1mm) clerance and then listen to zing zing from sand/mud/road crap
2. Is pad clerance the same on road and mtb calipers? I think you can use mtb hydros with STIs provided you have required mounts and thats no problem with custom
3. Has the problem with pulling the brake with wheel removed been sorted out? After some 15hrs in I can't really say I'm focused and can easy imagine scenario with accidentally pulling/hitting or w/e on a brake when changing tube.... And how to resolve that problem with current systems? On the roadside, with no bleeding involved.
Forks
I would like to avoid alu-carbon options coz imho there is unecessary potential failure point from joining dissimilar materials when compared to gains.
Decent light weight carbon options are either race orientated with no mounts and clerance or cost too much... Or both...
Something like this would be nice
http://www.rideaera.com/all-road-dynamo-fork/https://cinq.de/de/carbon-gabeln/393/cinq-touring-fork?c=137#Whiskey has some options also... Also pricy
Dyno routing is nice but not essential since I can make fender stays from seamless 5mm stainless pipe, 1mm wall thickness and then route coax trough it to the fender itself and then along the ridge (or if aluminium inside the bent edge) to the light. Already made one and it works like a charm, gilles berthoud style with flat part over guard... Dont have pics of it and no computer atm but can prolly make a sketch if anyone interested
And that leads us to good old steel forks...
4. Whats on the offer stock/mass produced these days, 12mm TA, disc brakes, ? Flat or post mount matters little (or? )
5. If going custom fork too... Which tubes? 853? or 953 stainless? Columbus or some other equivalent? I think it doesn't make much difference. Personaly would prefer stainless but its not deal breaker.
Unicrown has less joints, but in the end I think it matters little, unless they are better in dealing with forces from discs because of welds instead of braze
Upside is that mounts are not an issue, SON dropouts become possible... Nice option.
6. Whats the weight on them? Is sub 1kg possible? Or around that figure? Current bike has steel disc fork and I think its close to 1.3...but never bothered to weight it....could easy be more then modern carbon frameset xD
7. Any idea on price?
chainset and gearing
Was thinking R8000 ultegra since it can provide decent low gearing (And I'll need lower gears for winter) with DA9000 cranks since most other new/modern cranks look horrible... Atleast to me... And it only gets worse when you hang them on Ti frame
Im aware that tripple would be prolly best solution for my needs but I have VERY little experience with setting it up, if there is electronic tripple front mech it would be no brainer...
(and here things get complicated)
Its not been long since I relocated... And where i come from there is no granite (just limestone) ... So now for the very first time I see what that grinding paste + chips do to tyres, rotors, pads... Can only imagine rims...
Call me crazy or an idiot but I started to think about rear drum brake. Also... Absolutely no experience with those so if anyone who has some insight could enlighten me... Pretty please >.>
I saw the SA 70mm drum brake... Its only up to 9spd, and that is managable, Im much more interested in how well it works... I dont expect it to brake like hydro disc... But some comparison with rim brake or my bb5 would be nice.
It's possible (atleast should be) to pair them with cable disc so I could run bb7 or spyre as front
The idea of weather proof silent brake that lasts a long time is very appealing, even if it would be used as slow-down brake most of the time
Then gearing would have to be different...
So how stupid would it be to equip a 'new' bike with 9spd Dura-Ace 7700 triple sti's, rear drum, front cable disc brake, there are decent options of cranks and 9spd casettes so that is not an issue....essentialy putting 15year old stuff on new bike....
Dura-Ace, hub dynamo, tripple and drum brake on the same bike sounds sick, missing only aero spokes
Sincere thanks to those who managed to get through walls of text and if you are not drained enough by now any suggestion, opinion or insight is very much appreciated
