13,049 reputation
21648
bio website
location Porto Alegre, Brazil
age 36
visits member for 2 years, 7 months
seen Mar 5 at 19:50

I ride non-stop since I am 4, my father gave me one bike each 4 years until 18. Since then I am changing components and assembling new bikes. Now I have seven, including tandem, home-made recumbent, fixed gear, city-bike with generator and internal-gear-hub, freeride full-suspension.

I have been bred on XC mountainbike (raced a bit), and enjoy technical terrain, as well as light freeride, randonneuring, and touring. I also like to try to smoke my friends and acquaintances on group rides (and so do them).

I tend to do my own assembling and mainteinence, and am known among friends for a natural willingness to solve mechanical problems "in the field", even those not on my bike. I like to read about deep intricacies in bicycle mechanics, being a strong fan of a lot (but not all) of Sheldon Brown approaches.

Recently, I am engaged on bike as transportation, bike advocacy, and political-related-bike-issues, and participate in a lot of local groups, mostly nightbikers, weekend rides (not club rides) and Critical Mass.

My short-term bike-related goal is to have equipment and energy to commute all-year round (my winter is very rainy), and my long term goal, more like a dream, is to be full-time involved with bikes, professionally (most probably designing/manufacturing or selling stuff).


Nov
30
awarded  Citizen Patrol
Nov
30
comment Do 29 inch wheels make a difference?
Perhaps edit your question, like "What difference do 29 inch wheels make?". Question as it is makes difficult to give an useful answer.
Nov
28
comment How do I measure a fork for suitability?
Also, rake affects rideability a bit, but it does not affect rim/hub compatibility with the fork.
Nov
28
comment Rear wheel not centred, presses against one of the brake pads (Rohloff hub, Magura rim brakes)
Also, you could mark my answer as accepted if you want :o) Just check the little green "V".
Nov
28
comment Rear wheel not centred, presses against one of the brake pads (Rohloff hub, Magura rim brakes)
@gerrit most probably this bolt has some standard thread pitch (most probably M5, which means 5mm outer thread diameter). If a bottlecage bolt fits, it is M5. Then you could buy any M5 bolt with correct length on a hardware store, and use it with one or two washers. The bolts don't need to look the same, they just need to work the same.
Nov
27
answered Rear gears don't turn anticlockwise
Nov
27
comment Rear gears don't turn anticlockwise
Was the wheel normal before you took it from the bike? Or you took it BECAUSE it got stuck? Was it sudden? Was the bike stored, out of use, for a long time? Possibly it took some rain? More details are needed!
Nov
26
comment Rear wheel not centred, presses against one of the brake pads (Rohloff hub, Magura rim brakes)
@Mac : that is the main reason the Surly Troll had not become my dream-bike... Nowadays I think Rohloff needs a rigid (unsprung) chain tensioner screwed to the derailer hanger, OEM2 or speedbone-type torque plate, and vertical dropouts, never-to-touch-the-brake-setup-again.
Nov
26
comment New chain is pre-lubricated, should I clean it?
In a singlespeed chainline the outer part being dirty is not a great problem, since this dirt woultn't wear the chain. The problem is dirt on the legs, and that is a good reason for the chain not to be soaked in lube.
Nov
26
answered New chain is pre-lubricated, should I clean it?
Nov
26
answered Rear wheel not centred, presses against one of the brake pads (Rohloff hub, Magura rim brakes)
Nov
24
comment What's the easiest way to insert a star nut into a steerer tube?
I did it once or twice, I think it is actually straightforward, not so much luck needed.
Nov
23
comment Can I replace my self-energizing brakes with regular cantilevers?
Also, I would recommend using V-Brakes with cantilever-specific (longer) brake levers on tandem. They're not meant to be used together because, on solo bikes, you literally get KILLER BRAKES! I have this combination on my tandem, and it works great!
Nov
23
comment Can I replace my self-energizing brakes with regular cantilevers?
These kind of parts are meant to be disassembled, or at least removed from the bike, so that you or your trusted mechanic can go for it no-fear.
Nov
23
comment What do the numbers of shimano components mean?
My guess would be just the product reference number used for product description by Shimano itself and for their sales and support, not related to product quality or price, or "goodness". But that is a guess.
Nov
23
comment Should you use GT85 on your chain?
Since I went for gearbox oil (cheap, thick, longlasting, available everywhere, one liter lasts forever) my chains look me with gratitude each time I look at them.
Nov
23
comment Will regular removal, cleaning and re-placing of my chain weaken or damage it?
Great answer! +1
Nov
23
answered Is it possible to put a chain on without removing the rear wheel?
Nov
23
comment What's the efficiency of hub gears compared to derailleurs?
I own a Rohloff and don't think it is way expensive to buy. Not only it costed the same as the parts I didn't have to buy (crankset, rear and front deraileur, cogset, shifters, etc.), but also the drivetrain lasts longer. It is not perfect, but it is worth for anyone that will crush the miles from it.
Nov
23
comment What's the efficiency of hub gears compared to derailleurs?
Weight should not affect efficienty, which is a measure of energy input vs. energy output. A bike can be heavy (require more energy to move), and even so be efficient (not wasting energy with friction, flexing, etc.)