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Just fitted wider road bars and the front hose is a little too short and tight, so looking at replacing hose,have done mtb hoses before , just wondering if they are the same hose and fittings ?
cant see anything that says its for 505 specifically ?
[url= https://www.sjscycles.co.uk/brakes/shimano-alivio-brm4050-connecting-bolt-unit-y8al98020/ ]The barb/insert is different[/url] (has a channel on the outside and a slight internal chamfer), and the [url= http://si.shimano.com/pdfs/dm/DM-BR0008-08-ENG.pdf ]manual[/url] says:
The connector insert is for this brake hose only. Use an appropriate connector insert according to the following table. Use of a connector insert
incompatible with the brake hose may cause fluid leaks.
Safest bet would be to get the correct hose and inserts.
l.e. The road hose is listed as [url= https://www.sjscycles.co.uk/brakes/shimano-ultegra-brrs785-smbh59jk-straight-connection-disc-brake-hose-white-rear-1700mm/ ]"2.3mm bore"[/url], while the MTB one is [url= https://www.sjscycles.co.uk/brakes/shimano-xtr-brm9020-smbh90-hydraulic-disc-brake-hose-black-rear-1700mm/ ]"2.1mm"[/url].
Edit - beaten to it!
Shimano Road stuff uses the “older” BH-59 (with the brass insert) whereas newer MTB stuff uses BH-90 (with the silver insert)
I’ve fitted mine (RS505 and RS685) with the BH-90 Hoses on the recommendation of a Shimano tech guy in order to “sharpen” the brakes up - I like little lever throw and very on/off brakes even on the roadie!
HTH
A
+1
2.3mm bore (older type). The olives are the same but the inserts are gold for 2.3 and silver for 2.1mm.
Thanks for the help