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Disc Brakes and Velomobiles

Posted: Thu Dec 06, 2012 5:55 pm
by Aushiker
I am still working through the options/directions to take with respect to a velomobile and whilst the Sinner Mango is on the short list I also do like the Ice Sprint/Borealis combination. However one deal breaker for me is having dynamo power. Now Sinner Bikes have made progress on this aspect with a mid-mount dynamo but it seems that with the Borealis the only option is a SON XS-M and disc brakes.

Some velo pilots seem to have issues with disc brakes in their velomobiles with pad wear rates being high. There is also the issue of having to remove the calliper to replace the pads.

I am wondering but if the pad wear rates would be that high for a velomobile ridden here in Western Australia where the riding conditions are generally much milder (Mediterranean climate) or would there still be enough crap getting into the wheel well during winter to do the damage?

Thoughts?

Andrew

Re: Disc Brakes and Velomobiles

Posted: Sat Dec 08, 2012 10:32 am
by recumbenteer
G day Andrew,

My own experiences in the short time I've been blasting around in the Rotovelo...

Yes, it seems discpad wear could be quicker, my reasons being ... having to bring a 35kg Rotovelo + 100kg velonaut + 40km/hr commuter cruising speed to a halt for a 'red light' :shock: ( yes we velonauts DO stop for red lights...but that's another topic :mrgreen: ) this does sometimes need quite a bit of braking power!!

Same sitution when I'm cruising on the local "unoccupied" shared pathways, more braking power is required to dump speed for tighter cornering (RV has a rigid frame, no suspension)

Afterall, I think these disc pads were designed for use by 'gnat'weight DF riders, with their micro gram bikes 'n even lighter gear LOL :twisted:

I'm currently using 'resin' pads but will try the 'sintered' version for the next replacement.... resin pads have done about 700km so far and have had to be re-adjusted about every 200km.
I don't believe 'crud accumulation' causes too much extra wear.


PS I spent 2 1/2yrs trike commuting in W.A, rim brakes only... winters are damp 8)

Re: Disc Brakes and Velomobiles

Posted: Sat Dec 08, 2012 11:24 am
by Aushiker
Thanks for your thoughts and great to hear from a Rotovelo pilot :) I have pretty gone back to the idea now of 90 mm drum brakes on a Sinner Mango with the dynamo mounted mid-drive.

The pricing and weight of the ICE trike/Boarelis combo just does not make it a viable option.

Andrew

Re: Disc Brakes and Velomobiles

Posted: Sat Dec 08, 2012 6:12 pm
by Riggsbie
It sounds like your decision making matrix is almost complete ;p

When are you placing the order for your Mango ?

Hehehe


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Re: Disc Brakes and Velomobiles

Posted: Sat Dec 08, 2012 7:41 pm
by Aushiker
Riggsbie wrote:It sounds like your decision making matrix is almost complete ;p

When are you placing the order for your Mango ?
I am getting there that is for sure .... gearing to sort out and Red Edition versus Tour ... then the big elephant, the finances. That one is being worked on :)

Andrew

Re: Disc Brakes and Velomobiles

Posted: Sat Dec 08, 2012 11:33 pm
by Riggsbie
You just need to bribe the Bank Manager ;-)

Nice weekend away somewhere ? Spa treatments for a year ?


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Re: Disc Brakes and Velomobiles

Posted: Sun Dec 09, 2012 9:53 am
by Bartek
Riggsbie wrote:You just need to bribe the Bank Manager ;-)

Nice weekend away somewhere ? Spa treatments for a year ?
+1

Worked for me!

Re: Disc Brakes and Velomobiles

Posted: Thu Dec 13, 2012 1:06 pm
by burnt
I agonised about the cost for ages, minimised the outlay and fretted about it until it arrived.

6 months down the track, I reckon its the best money I've ever spent!!

Re: Disc Brakes and Velomobiles

Posted: Thu Dec 13, 2012 3:56 pm
by Riggsbie
Ditto !!

When it arrives and you become used to it becomes second nature - the cost excuse vanishes when pass a $15k Cervelo when you do your first Around the Bay ride !!

Re: Disc Brakes and Velomobiles

Posted: Thu Dec 13, 2012 7:14 pm
by Bartek
Well I will have to take your word for it, at the moment. I just received an email from Harma to say my Mango will be the first one assembled when they return in the new year (2nd) so I am looking at the back end of January at the earliest!

no Christmas present for me :(

must be on the naughty list :lol:

Re: Disc Brakes and Velomobiles

Posted: Fri Dec 14, 2012 12:20 am
by John Lewis
Bad luck.
I thought yours was a bit further along than that.
Still you have it to look forward to.
For me, I have the Mango but can't ride at present due to health issues.
Not sure what is worse. Waiting ( I waited 7 months) or having it sitting there and unable to ride.
Had hoped you would get down here with Andrew. Sorry you didn't make it.

John

Re: Disc Brakes and Velomobiles

Posted: Fri Dec 14, 2012 6:21 pm
by mozart
Bartek wrote:Well I will have to take your word for it, at the moment. I just received an email from Harma to say my Mango will be the first one assembled when they return in the new year (2nd) so I am looking at the back end of January at the earliest!

no Christmas present for me :(

must be on the naughty list :lol:
I know that my Christmas present is on it way. :D

Image

Re: Disc Brakes and Velomobiles

Posted: Sat Dec 15, 2012 12:42 am
by John Lewis
Woo Hoo!

Now the Looong wait starts. Even if it is only days. :mrgreen: :mrgreen:

John

Re: Disc Brakes and Velomobiles

Posted: Sat Dec 15, 2012 1:44 am
by DentedHead
Ugh... I've come to the conclusion that disc brakes are some form of torture device designed to explode the heads of home-builders. I spent literally all freaking day trying to get the calipers mounted to my latest project (home-built velo, seeing as I can't afford to buy one). I still don't have them adjusted properly.

Dent.

Re: Disc Brakes and Velomobiles

Posted: Sat Dec 15, 2012 12:44 pm
by Bartek
mozart wrote:I know that my Christmas present is on it way. :D

Image
Obviously you have been better behaved than me, well done!

Hope you don't have to wait to long, and don't forget to post videos and pics (I need them!). The others have been letting me down, I think this must be the longest we have had to go without a Nitramluap video (obviously a sadist, trying to make me suffer!)

Re: Disc Brakes and Velomobiles

Posted: Wed Jan 02, 2013 11:13 pm
by Roinik
Aushiker wrote:I have pretty gone back to the idea now of 90 mm drum brakes on a Sinner Mango with the dynamo mounted mid-drive. Andrew
Greenspeed utilise a Magura disc brake caliper setup. Checking their website they make them with a serious 203mm disc and hard wearing pads. Worth considering for the Mango (or whatever else takes your fancy)?