i use a short cage shimano 105 on my DH bike, it reduces the chain slap and its has more stiffer spring! the trick here why the pros use small cage? MTBIKES cassettes are a little heavier on road cassettes, ryt? cause they are small yet strong. its a set up thingy! to save weight on thier DH bikes. first, a dura ace sprocket, 2nd, small chainring around 40tt, to compensate on the small cogs then short cage roller for less chain. even thou u use small cogs, u must know whats pedaling capability.. ur power to weight ratio of the rider.. its not just about the short cage issue.. but a whole set up issue! i use a 105 roller but a deore 9speed cogs n race face 44tt chain ring... it is because i havent finished the whole set up.. in time ill be using the 40tt chainring ang road cogs... to reduce weight and good pedaling cadence.. at DH runs.. its better to spin than to grind the cranks!!
Post by atomikmatchbox on Mar 28, 2005 8:13:56 GMT 8
frorider is ryt ;D now for the set up thingy mention by pengot, looks like i need to change my whole bike hebigats kasi, set up of dh bikes here in phil. are pagaangan na and im left behind more on redbull rampage ang set up ng bike ko i need to save money again for new dh rigs
peachy is right. shorter cage for small road cassettes and longer cage for bigger mtb cassettes.
i recently replaced my XT deraileur with Shimano 105 using mtb XT 9-speed cassette but i couldnt run the bigger (light) gears (#32 & 28) because the upper pulleys kept hitting the cassette. In the end, had to kill the #32 gear and replace the screw thats screwed against the drop-out (dunno what this is called) with a longer one to keep the pulley from hitting the #28 gear.
i shifted to a short cage deraileur so that it would have lesser probability of getting entangled with my spokes.
www.haooh.com for the latest in Phil. mountain biking RIDE SMOOTH... IF IN DOUBT...FLAT OUT!
Post by nightcrawler on Mar 29, 2005 20:37:08 GMT 8
is it for clearance to avoid roots or rocks? or is it for shortening the chain to minimize chain flopping during a dh run? to save weight?
yup all of the above. plus it shift smoother.
why is there a short and long cage derailleur? in the first place, and why road bikes use the short derailleur?
There are also long cage front and rear derailleurs for Road bike. This is if you will use a tripple chainring in front. Yes their is a tripple crankset for road bike. So that explains it, if you have tripple chainrings you need to use longer rear dearailleur to compensate for the extreme tension when you use your big chainring and big sprocket (this is not advisable though). I'm exaggerating so we can picture out if you use a smaller rear derailleur..........
In DH we have only 1 chainring so I guess if you can picture out what i describe above, a long cage is an overkill for DH. Thats why they make Short cage for MTB rear derailleurs - for DH.
can we use road bike short derailleur on 8 or 9 speed mtb sprockets? (compatibility issue) and what will be the perfromance?
Most definitely... try checking out at the races you can see people running this set up. I have 105 RD, xt 11-32 cogs and 40T front. This is my set up for the longest time.
stealthwanderer: Ayan yung matagal ko na gusto itanong: 1 Hour ride, mabasa ng ulan o' mabasa ng pawis sa loob ng kapote. Baka kasi ako lang nageenjoy sa ulan kasi may paliguan pagdating sa trabaho, hahah.
Aug 9, 2019 11:35:30 GMT 8
anthrax76: sa ngayon, mag jacket lang ako kapag umuulan at mahangin. kasi masakit sa balat ang matulin na ulan tsaka malakas makababa ng core temperature ang wind chill.
Aug 10, 2019 22:17:32 GMT 8
anthrax76: pero kung normal na ulan, 'di naman mahangin, hanggang mabasa na lang ako ng ulan okey lang. although i minimize kung gano katagal ako exposed. anything more than an hour, medyo delikado.
Aug 10, 2019 22:21:04 GMT 8
konablack: gamit ko two-piece raincoat, dehins lang sya ideal kung may backpack ka
Aug 13, 2019 7:39:14 GMT 8
oniechan: altered poncho..dahil ng backpack..bawas ng haba sa likod at sa side..mas malamig compared sa 2-pc na raincoat....
Aug 13, 2019 11:27:45 GMT 8
anthrax76: yung poncho, ginagamit ko lang sa climb or kapag naglalakad. feeling ko saranggola ako kapag naka bike eh, ha ha.
Aug 15, 2019 23:44:25 GMT 8
anthrax76: ang weird kagabi, padyak ako pero kahit may headwind at crosswind, swabe lang. parang tailwind yung pakiramdam.
Aug 24, 2019 4:32:23 GMT 8
lefty: Na experience nyo na sir yung pagbaba mo ng mabilis sa tulay biglang may malakas na crosswind tapos umangat yung front wheel? Nangyari na sa kin once pagbaba ko ng Southpeak. Mga March yun last year, mahangin talaga around that time last year.
Aug 24, 2019 8:50:45 GMT 8
lefty: Umangat ng konti na parang tinulak ng konti pa-side. Buti na control ko at di ako sumemplang. Nangyayari ba talaga ito normally? First time ko naka-experience nun.
Aug 24, 2019 8:56:30 GMT 8
anthrax76: hmm...never pa naman umangat yung harap na gulong ko. i get pushed downwind pero never pa umangat.
Aug 24, 2019 21:10:36 GMT 8
corollafreak: wassup!!! long time no hear dito =D
Aug 27, 2019 15:06:23 GMT 8
stealthwanderer: Hello! Meron bang pumapasok around Greenhills? If so, saan kayo nagpapark ng bike?
Aug 27, 2019 17:54:27 GMT 8
anthrax76: @cf!!! uy kumusta na?
Aug 28, 2019 0:01:25 GMT 8
anthrax76: stealthwanderer, dati may parking ang bikes dun from firefly brigade, sa parking sa harap. pero ginawa na yata yun so dehins ko alam kung saan nalipat. try ko magtanong minsan kapag napasyal ako.
Aug 28, 2019 0:02:48 GMT 8
konablack: wala na yung parking spot ng firefly brigade doon
Sept 4, 2019 9:26:36 GMT 8