hingal aso
Free Rider
In my dreams!!!!!!!
Posts: 237
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Post by hingal aso on Jun 23, 2005 3:18:15 GMT 8
English daw...so her et goes.
I have seen meny DH bikes using rear derailleurs from road bikes enstead of from mountein bikes. I just remembered because I sew the picture of KonaniKonan which again confused me why the use of Shimano105 rear derailleurs.
My question is why? Does this enclude the sprockets...which also would also mean the nead for a road component shifter?
Just nothing. Confused me only. (Wala lang. Naguguluhan lang ako)
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Post by feraskulio on Jun 23, 2005 3:23:52 GMT 8
Not sure of this but maybe, road shifters are lighter, coz everything on a DH bike is heavvvvvyyy, kya siguro dapat yung ibang parts ay lighter...
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Post by warlock^_^ on Jun 23, 2005 8:07:56 GMT 8
I'm not a Downhiller, but from the threads I come across about drivetrains, DH rigs were fitted with road RD primarily for having a SHORT cage, thus giving enough clearance during the DH run.
On DH dedicated rigs, meaning you wouldnt have to pedal up on anywhere, the requirement of tall gears like 28~34 is not necessary anymore which requires a long cage RDs.
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Post by >rocketman> on Jun 23, 2005 8:11:03 GMT 8
check the thread below, just scroll down, It's not just the derailleur but the whole drive train
Ive just converted my drive train o my dh race bike, 105 short cage derailleur, dura ace 9 speed chain and ultegra 12- 27 sprocket,
the reason is:
-> shifting is crispier like jolibee chiken joy hehehehe, jok -> seriously you will have enough tall gearing even if you use small 44, 42 to 40 teeth chain ring, this will depend on what type the DH course will be (pedaling or not), as per frorider the key is to spin and not to grind, and slight heavy sya at gate starts, may explosive power, So not only for Dh but also for 4X, -> your chain length is shorter to reduce chain slapping, -> short cage derailleur has clearance against roots and rocks along the course. ->and yes road componenets is lighter, the trend is to lighten up your dh race bike, lighter is faster, We are also weight junkies like our XC brothers hehehe.
fyi, short cage will not reach the 34 teeth sprocket, maximum teeth is only 28 as per manual but it can work on 32 teeth.
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Konan
Free Rider
YOU've Got SERIOUS Thrill Issues DUDE!!!!
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Post by Konan on Jun 23, 2005 9:42:05 GMT 8
yOH dOUG Derailliuer clearance from the rough stuffs is the main thing that I considered why I went for a 105 RD, we usually run on rocky trails kasi and sometimes no matter how you chuz a line on the rough, sometimes nga theres no neat line at all sumasabit ang RD. Having a Shortcaged 105 medyo na lessen ang chances on breaking my RD hanger and the RD itself The second reason is that I cant afford the Saint RD ;D ( which is shortcaged if I got it rayt, GURUs tama po ba?) As for its other benefits, RockeTHEman has said it na DAng!Not even aware of those things brad ;D Ask lang ng Ask, Ride lang ng Ride ;D
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hingal aso
Free Rider
In my dreams!!!!!!!
Posts: 237
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Post by hingal aso on Jun 23, 2005 20:50:48 GMT 8
What shifter do you use when you install a road sprocket?
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Konan
Free Rider
YOU've Got SERIOUS Thrill Issues DUDE!!!!
Posts: 359
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Post by Konan on Jun 23, 2005 21:04:03 GMT 8
What shifter do you use when you install a road sprocket? Shifter ko is a Shimano Deore XT 2003 8 speed compatible. I'm only using a Roadie RD not a road sprocket
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Post by [ eRECTUS ] on Jul 19, 2005 0:04:34 GMT 8
yeah..afaik it shifts faster and the fact that it is short cage makes a bif diff for clearance..
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Post by fetitocinne on Sept 22, 2005 1:18:07 GMT 8
will a road(e.g. shimano105) RD fit a deore 32-11 cogset? just curious
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Post by g.b.b on Sept 22, 2005 6:28:54 GMT 8
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Post by >rocketman> on Sept 22, 2005 21:30:18 GMT 8
short cage derailleur road/mtb shimano, recommends 27, to 28 teeth, But it will reach up to 32 teeth max, not 34t
;Dalso, If you will use road sprocket (11-28) or (12-27) on a single chainring, drop the chainring size, to 38t, 40t, 42t.
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Post by 'Bee' on Sept 23, 2005 9:16:59 GMT 8
Here's an option, with the sturdiness of an MTB component of course. Now available from your favorite LBS (maybe) or Internet Stores!!! ;D ;D ;D Surely to drain your wallet though. ;D ;D ;D
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Konan
Free Rider
YOU've Got SERIOUS Thrill Issues DUDE!!!!
Posts: 359
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Post by Konan on Sept 23, 2005 20:15:23 GMT 8
Here's an option, with the sturdiness of an MTB component of course. Now available from your favorite LBS (maybe) or Internet Stores!!! ;D ;D ;D Surely to drain your wallet though. ;D ;D ;D Owwz nagsalita yung may mahiwagang bottomless na wallet , gift mo na lang yan sakin sa Christmas
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Post by 'Bee' on Sept 25, 2005 19:43:55 GMT 8
Owwz nagsalita yung may mahiwagang bottomless na wallet , gift mo na lang yan sakin sa Christmas Anong mahiwagang bottomless wallet? Meron ba nun? ;D ;D ;D Ang mahal naman ng gusto mong gift. DVD na lang. ;D ;D ;D
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Post by levi on Jun 17, 2008 17:16:58 GMT 8
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