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#1
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Inter-M hub brake too weak
i got giant fusion dx bike, such as
http://www.giant-bicycles.com/nl-be/...llections_id=2 its second hand but without many signs of use, ie like new! however, brakes are very weak, and if i apply excessive force, there comes metallic sound .. ? z |
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#2
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Inter-M hub brake too weak
On Dec 4, 12:37*pm, crowizcom wrote:
i got giant fusion dx bike, such ashttp://www.giant-bicycles.com/nl-be/bikes/lifestyle/967/28195/zoom/?c... its second hand but without many signs of use, ie like new! however, brakes are very weak, and if i apply excessive force, there comes metallic sound .. Roller brakes can make a bit of noise, especially if they need to be serviced. They stop just great in my experience, though you may need to tweak the cable routing to get the smoothest pull. I've used thick non-Shimano grease in roller brakes with no ill effects. |
#3
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Inter-M hub brake too weak
On Dec 4, 6:37*pm, crowizcom wrote:
i got giant fusion dx bike, such ashttp://www.giant-bicycles.com/nl-be/bikes/lifestyle/967/28195/zoom/?c... its second hand but without many signs of use, ie like new! however, brakes are very weak, and if i apply excessive force, there comes metallic sound .. ? The brakes are weak because they're dry, and they're loud for the same reason. You must buy a tube of special Shimano Roller Brake Grease and squeeze in some through the grease port behind the small rubber plug on the outside of the roller brake. Don't use any other grease. Andre Jute The rest is magic hidden in the hub. For rare hub gear bikes, visit Jute on Bicycles at http://www.audio-talk.co.uk/fiultra/...20CYCLING.html |
#4
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Inter-M hub brake too weak
Per landotter:
Roller brakes Tangential question: are the "coaster brakes" on old single-speed American bikes a flavor of roller brake? -- PeteCresswell |
#5
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Inter-M hub brake too weak
Per landotter:
Roller brakes (PeteCresswell) wrote: Tangential question: are the "coaster brakes" on old single-speed American bikes a flavor of roller brake? No. There are a few basic designs, from classic Bendix to New Departure and on to Perry. Almost all CB are variants on one of those but not roller brakes. Unfortunately, if Shimano shows you a drawing of the Secret Brake Mechanism, they'll have to kill you: http://bernd.sluka.de/Fahrrad/Shiman...-IM50_1998.gif -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#6
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Inter-M hub brake too weak
crowizcom wrote:
however, brakes are very weak, and if i apply excessive force, there comes metallic sound .. What Andre Jute said-- your brake needs grease. Since that is a very unusual and extreme condition for a grease, I would take Shimano at their word when they say you must use their special roller brake grease. Occasional greasing is the only maintenance that roller brakes need, but they really need it. Chalo |
#7
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Inter-M hub brake too weak
crowizcom wrote:
however, brakes are very weak, and if i apply excessive force, there comes metallic sound .. Chalo wrote: What Andre Jute said-- your brake needs grease. Since that is a very unusual and extreme condition for a grease, I would take Shimano at their word when they say you must use their special roller brake grease. Occasional greasing is the only maintenance that roller brakes need, but they really need it. Nothing wrong with Shimano grease but we pump Lubriplate 130AA [1] in them with good results. 'Good results' means regular customers for 12 years or so. Normal interval is a about a year in daily use. [1] only because we have it, with an injector head, handy. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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Inter-M hub brake too weak
On Dec 4, 3:26*pm, AMuzi wrote:
crowizcom wrote: however, brakes are very weak, and if i apply excessive force, there comes metallic sound .. Chalo wrote: What Andre Jute said-- your brake needs grease. *Since that is a very unusual and extreme condition for a grease, I would take Shimano at their word when they say you must use their special roller brake grease. Occasional greasing is the only maintenance that roller brakes need, but they really need it. Nothing wrong with Shimano grease but we pump Lubriplate 130AA [1] in them with good results. 'Good results' means regular customers for 12 years or so. Normal interval is a about a year in daily use. [1] only because we have it, with an injector head, handy. I've used Phil's because that's why I had laying around. Worked fine. Yearly interval is about right in the rust belt. Should go a couple years down here. |
#9
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Inter-M hub brake too weak
On Dec 4, 3:02*pm, landotter wrote:
On Dec 4, 3:26*pm, AMuzi wrote: crowizcom wrote: however, brakes are very weak, and if i apply excessive force, there comes metallic sound .. Chalo wrote: What Andre Jute said-- your brake needs grease. *Since that is a very unusual and extreme condition for a grease, I would take Shimano at their word when they say you must use their special roller brake grease. Occasional greasing is the only maintenance that roller brakes need, but they really need it. Nothing wrong with Shimano grease but we pump Lubriplate 130AA [1] in them with good results. 'Good results' means regular customers for 12 years or so. Normal interval is a about a year in daily use. [1] only because we have it, with an injector head, handy. I've used Phil's because that's why I had laying around. Worked fine. Yearly interval is about right in the rust belt. Should go a couple years down here.- Hide quoted text - - Show quoted text - I have used aerosol spray grease, regular white lithium, phil's, polylube 1000 and the special shimano grease. The main difference is that the shimano grease is much less prone to catching on fire during a long downhill on a hot day. I have also used wd-40, tri-flow, phil's oil, and 3 in 1 when grease wasn't handy it they all worked as well. Using oil rather than grease seemed to eliminate fade, but with a new effect of causing a major spike in braking power when the brake got really hot. If the brake is making noise it is a good idea to clean it out before re-lubricating, as dirty old grease will build up in the braking ring and degrade performance. The other source of noise is a loose cooling fin/ring, and that can be solved with locktight or super glue. If you still don't have enough braking power after re- lubrication try using a longer pull brake lever. -Rando |
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