Singlespeed with Hydraulic Disks

turkeytickler

Hi there

I have been looking admiringly at the Charge Mixer - but thinking its a bit OTT for my 5 mile commute... http://www.chargebikes.com/products/bik ... .php?id=15

What I would really like is a 700c single speed with hydraulic disks - I realise the disk brake thing is somewhat at odds with the simplicity principle of the single speed - but does anyone know of a bike that fits these criteria?

thanks

tt

arankapila

the perfect bike for you is the cotic road rat. available with or without disc brakes, 26 or 700c wheels. flat or drop bars, gears or sspeed. hope that helps.

NorwegianBlue

Mongoose Sabrosa SS has cable discs, but you could upgrade to hydraulic. And it comes with built in caffiene too!

georgee

I have the same requirement and am very tempted by the Cotic, If you look at the mongoose it’s a standard bike with a converter kit, where as the Cotic is truly flexible. The only problem is that I am after a fixed rear wheel where the only hubs fixed are never disk hubs. White Industries, Surley and Chris King all do disc hubs with either a threaded single speed or a very short freewheel body to fix a standard cog on but not are fixable!

Anyone ever seen one, another fixed forum talk of an adapter that converts a fixed thread into an ISO disc mount but I can’t find this anywhere, also hubs with ISO disc mounts each side so you could use a bolt on cog one side and disc the other! Anyone have any ideas?

NorwegianBlue

georgee wrote:

I have the same requirement and am very tempted by the Cotic, If you look at the mongoose it’s a standard bike with a converter kit, where as the Cotic is truly flexible. The only problem is that I am after a fixed rear wheel where the only hubs fixed are never disk hubs. White Industries, Surley and Chris King all do disc hubs with either a threaded single speed or a very short freewheel body to fix a standard cog on but not are fixable!

The Sabrosa I've seen definitely did not have a converter kit. It was a vertical dropout frame with an excentric bottom bracket. I prefer this setup to track ends or sliding dropouts, just a personal thing but your wheelbase stays the same when you change your gearing.

NorwegianBlue

georgee wrote:

I have the same requirement and am very tempted by the Cotic, If you look at the mongoose it’s a standard bike with a converter kit, where as the Cotic is truly flexible. The only problem is that I am after a fixed rear wheel where the only hubs fixed are never disk hubs. White Industries, Surley and Chris King all do disc hubs with either a threaded single speed or a very short freewheel body to fix a standard cog on but not are fixable!

The Sabrosa I've seen definitely did not have a converter kit. It was a vertical dropout frame with an excentric bottom bracket. I prefer this setup to track ends or sliding dropouts, just a personal thing but your wheelbase stays the same when you change your gearing.

turkeytickler

The cotic looks the business - thanks very much! :-)

NorwegianBlue

georgee wrote:

The only problem is that I am after a fixed rear wheel where the only hubs fixed are never disk hubs. White Industries, Surley and Chris King all do disc hubs with either a threaded single speed or a very short freewheel body to fix a standard cog on but not are fixable!

Anyone ever seen one, another fixed forum talk of an adapter that converts a fixed thread into an ISO disc mount but I can’t find this anywhere, also hubs with ISO disc mounts each side so you could use a bolt on cog one side and disc the other! Anyone have any ideas?

I've heard tell of the fixed to disc adpators, but I've never seen one. Only the other way round. However it shouldn't take too much to get your local machine shop to make you one up. All you really need to give them is the thread specs for the centre hole and disc mounts, the PCD of the disc holes and the thickness. Job jobbed. Obviously it would cost a bit more than an off the shelf item.

2wheelzgood

For why you need discs on a bike with skinyn road tyres, I do not know.
I am new to raod bikes however I am of the opinion that a decent, well set up cantilever or v brakes will cause enough stopping power to lock up even your front.

I saw some of the footage on Eurosport of road racers going down hard in the rain so image a grippy disc brake.

Then again it may to do with not wishing to ruin your rims.

have a loom on here, there's mention of at least 1 fixed road/cross bike with discs
http://www.londonfgss.com/thread10066.html

hth

turkeytickler

2wheelzgood wrote:

For why you need discs on a bike with skinyn road tyres, I do not know.
I am new to raod bikes however I am of the opinion that a decent, well set up cantilever or v brakes will cause enough stopping power to lock up even your front.

I saw some of the footage on Eurosport of road racers going down hard in the rain so image a grippy disc brake.

Then again it may to do with not wishing to ruin your rims.

have a loom on here, there's mention of at least 1 fixed road/cross bike with discs
http://www.londonfgss.com/thread10066.html

hth

Its a good point about the risk of locking up in the wet and given my ham fisted technique is a risk that could well come to fruition!

My main objective was as you say - to save the rims but secondary ironically enough was wet weather braking performance - which as you point out might be dangerously improved!

Any experience from others with disk brakes being OTT on the road?

I still _really_ like the look of the cotic 8)

Beeblebrox

I'd be scared of a disk brake on the road bike... Fishtailing funniness.

NorwegianBlue

turkeytickler wrote:

Its a good point about the risk of locking up in the wet and given my ham fisted technique is a risk that could well come to fruition!

My main objective was as you say - to save the rims but secondary ironically enough was wet weather braking performance - which as you point out might be dangerously improved!

Any experience from others with disk brakes being OTT on the road?

I still _really_ like the look of the cotic 8)

Discs may well be OTT with skinny road tyres, but who says you have to run skinny tyres. A reasonably chunky set of slicks will offer huge amounts of grip, on a dry road. However discs are very progressive, so there should be no risk of locking up even on skinny tyres unless you're a total klutz.