Meezo Posted September 19, 2017 Share time for an oil change before the heat it seems, its been 12 or so months your bike was the guinea pig(halaal version) so lets wait and see how long it lasts Link to comment Share on other sites More sharing options...
droo Posted September 19, 2017 Share your bike was the guinea pig(halaal version) so lets wait and see how long it lasts A guinea pig, despite its name, is neither from Guinea nor a pig - it's a rodent. Are rodents halaal? /hijack Meezo 1 Link to comment Share on other sites More sharing options...
dev null Posted September 19, 2017 Share A guinea pig, despite its name, is neither from Guinea nor a pig - it's a rodent. Are rodents halaal? /hijack Maybe in Indonesia they are. Meezo 1 Link to comment Share on other sites More sharing options...
Skylark Posted September 19, 2017 Share I recently serviced the brakes on my wife's MTB, and it is amazing how quickly the oil gets dirty. I would suggest a complete oil change every 6 months. That is if you ride around 25km per week. Brake hydraulics is a sealed system, how would dirt be getting in there to the extent that your oil becomes noticeably dirty and without a significant degradation in braking performance? Oil in automotive brake systems seem to go brown from corrosion in calliper pistons etc but MTB bikes don't have that issue? Link to comment Share on other sites More sharing options...
droo Posted September 20, 2017 Share Brake hydraulics is a sealed system, how would dirt be getting in there to the extent that your oil becomes noticeably dirty and without a significant degradation in braking performance? Oil in automotive brake systems seem to go brown from corrosion in calliper pistons etc but MTB bikes don't have that issue? Friction makes dirt. No need for it to be external. Link to comment Share on other sites More sharing options...
PeterF Posted September 20, 2017 Share Friction makes dirt. No need for it to be external.Pretty sure that minute particles of dust can also get into the system past the pistons in the caliper as they move in and out whilst braking. Link to comment Share on other sites More sharing options...
droo Posted September 21, 2017 Share Pretty sure that minute particles of dust can also get into the system past the pistons in the caliper as they move in and out whilst braking. Highly possible. Dust gets everywhere. Link to comment Share on other sites More sharing options...
ichnusa Posted September 21, 2017 Share I had the same issue with my Guide brakes... took them apart, piston in drill and sanded with 800grit paper, reassemble and voila! Perfect braking again! Link to comment Share on other sites More sharing options...
Pipsqueak Posted February 19, 2018 Share First off I must stress that I am by no means a qualified bicycle mechanic, I do have little very little experience with them. Secondly I cannot take full credit for this fix, the idea was given to me by a very very generous hubber who’d had offered to fix for me for free. KUDOS @BikeWhisperer and a close friend @gyro for the timeOk, then this is not an avid or shimano appreciation thread, nor an avid vs shimano thread. Which way does no 5 come out? Upwards, or downwards though the black ring?... sorry, just saw the previous tips. Bottom up.... doesn't seem to budge. Edited February 19, 2018 by Pipsqueak Link to comment Share on other sites More sharing options...
Meezo Posted February 19, 2018 Share Which way does no 5 come out? Upwards, or downwards though the black ring?... sorry, just saw the previous tips. Bottom up.... doesn't seem to budge.Yes bottom up, have you removed part no 8? I made this mistake before Also i found the right size allen key and a small knock with a rubber mallet helps Link to comment Share on other sites More sharing options...
Pipsqueak Posted February 19, 2018 Share Yes bottom up, have you removed part no 8? I made this mistake before Also i found the right size allen key and a small knock with a rubber mallet helpsYes, you're right. With so much dirt in there, a small whack got it out. Turns out the little bar at the top of the plastic roller fitting had snapped. So I guess I'm in for a new brake lever unit. Any ideas where I can get one of these? Link to comment Share on other sites More sharing options...
milky4130 Posted February 19, 2018 Share Yes, you're right. With so much dirt in there, a small whack got it out. Turns out the little bar at the top of the plastic roller fitting had snapped. So I guess I'm in for a new brake lever unit. Any ideas where I can get one of these?mine snapped as well & I put it back in just like that & still work 100's, post a photo of yours so I can see if we are talking about the same piece. Link to comment Share on other sites More sharing options...
Pipsqueak Posted February 20, 2018 Share mine snapped as well & I put it back in just like that & still work 100's, post a photo of yours so I can see if we are talking about the same piece. Its like a little pin & post that bridges the two side pieces. I must also note that its NOT a good idea to grab the piston end with your pliers...! Maybe I'm just looking for an excuse to get a set of Hopes... Edited February 20, 2018 by Pipsqueak Link to comment Share on other sites More sharing options...
Meezo Posted February 20, 2018 Share You in cape town? Might have spares at home Link to comment Share on other sites More sharing options...
Pipsqueak Posted February 20, 2018 Share You in cape town? Might have spares at homeNo, Im in Durbs. But am officially on the hunt for new levers. Link to comment Share on other sites More sharing options...
milky4130 Posted February 20, 2018 Share IMG_8371.JPG Its like a little pin & post that bridges the two side pieces. I must also note that its NOT a good idea to grab the piston end with your pliers...! Maybe I'm just looking for an excuse to get a set of Hopes...yep same piece i was reffering to, that could still work but the other part i crossed out, I'm afraid you can't do without that. Link to comment Share on other sites More sharing options...
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