Apr 25, 2019 press shifting button x to move the rear derailleur one step towards the inside larger sprocket while turning the crankfront chainring keep moving the rear derailleur towards the 4th largest sprocket until it makes a slight noise. Grab the cage at the lower pulley of a new derailleur while mounted to a bike and wiggle it side to side. After reading this mtb how to, you should be an expert on how to install and set up your rear derailleur. Mixing brands of shifters, rear derailers and cassettes. Then the adjustable laser can be moved so that the beam is cast directly on the upper pulley wheel of the rear derailleur. With the bike on a stand and chain on the smallest sprocket, turn the cranks and shift up one click on the lever. Shimano rear derailleur indexing problem cycling forums. Adjusting the lowhigh stopper bolts is a relatively easy.
Various derailleur systems were designed and built in the late 19th century. Shimano bicycle rear derailleurs for sale in stock ebay. Remember setting the limit screws does not affect how the derailleur indexes through the gears, only. The rearderailleur is the gearchanging assembly on the rear wheel of some bicycles.
If its not, make any adjustments necessary to sort out this alignment with the set screw marked h on the derailleur body. Derailleurs are secured to the bike with a mounting bolt to the frames derailleur hanger. How to index your gears adjusting your rear derailleur. An indexed system, where the shifters click between gear positions needs to be tuned or indexed. The derailleur auto upshifting to smaller sprockets after downshifting to larger sprockets may indicate a bigger problem with the shifter. If the bike has multiple front chainrings, shift the front derailleur to the largest chainring, then shift the rear derailleur to the smallest cog. Sep 28, 2019 hi, i tried using the rotor 12speed 19 cassette with my eagle rear derailleur but for some reason the indexing doesnt run smooth only on gears 248 and gear 2 12.
I have also completed the usual steps for indexing a shimano di2 derailleur, that is to say, moving the derailleur until a clicking noise is heard, and then baking off 4 microsteps. Save on shimano bicycle rear derailleurs trending price is based on prices over last 90 days. Shimanos duraace r9150 di2 groupset is lightweight, performs superbly across the board, and its operation is easy to customise. Some people however call nuovo record group simply record throughout the time frame of the introduction of the record derailleur all the way through the mid 1980s when the nuovo record group production is ended. Although the microadjust feature of sram red etap rear derailleurs does essentially the same job as a mechanical derailleurs barrel adjuster, with etap you can make the adjustment at the shifter while rolling down the road. Fine tune your rear derailleur with new linientreu precision. Replace derailleur when this play becomes significant. Once bent, the derailleurs and pulleys are not going to align with the sprockets. I had forgotten it entirely, until clark stanley sent me an email after reading it in a musty old magazine. There are many different models but they all share the same basic design and functionality. Quick guide indexing a rear derailleur merlin cycles blog. Use both the front and rear derailleur to shift through all the gears, making sure no chain rub occurs in any of them.
Derailleur wear the rear derailleur will become worn with use and abuse. The majority of rear shifting problems can be solved with basic adjustments to the limit screws and index setting of the rear derailleur system. Then i pulled the inner wire and cleaned and lubed it. Like a lot of things with bikes, floating pulleys only provide such a minor advantage that a lot of cyclists dont even notice or experience it. Top quality, great selection and expert advice you can trust. Being out on the trail with your derailleur not shifting through the. There are few things more annoying than a clicking drivetrain. Superb shifting, powerful braking, simple customisation. If your gear shifting has got gradually worse, indexing might be brought back to perfect just through tweaking the barrel adjuster. The rear derailleur indexing is adjusted by changing the inner wire tension. New shimano ultegra rx shadow plus rdrx800 gs 11 speed rear derailleur midcage. Sram nx eagle rear derailleur 12 speed, long cage, black brand new best price. For the common rear derailleurs, increasing inner wire tension tends to move the rear derailleur more to the left, or toward the spokes. Control lever so you dont need to reprogram your mind for the seis.
Index a rear derailleur madegood free bike repair resource. The right hand gear shifter on the handlebars pulls a cable or uses electronic signals to move the derailleur, which in. If i have been shifting up, and then need to shift. Press shifting button x to move the rear derailleur one step towards the inside larger sprocket while turning the crankfront chainring keep moving the rear derailleur towards the 4th largest sprocket until it makes a slight noise. Rear derailleur adjustments and cable replacement greater. Why does my rear derailleurs indexing work for either the. I also cleaned and lubed the derailleur on the pivots and the pulleys. By following these simple steps, and with a bit of practice, you can tune your own derailleur with confidence and save some time and money at the lbs. An indexed system, where the shifters click between gear positions needs. I am having a problem with the shifting of my shimano deore 9speed rear derailleur. If the chain is only upshifting one sprocket it may be that derailleur is not moving the chain far enough and the chain is falling down to the next smaller sprocket. Unable to index rear derailleur correctly skipping cogs.
How to microadjust your road bike di2 rear derailleur di2. One example is the protean twospeed derailleur available on the whippet safety bicycle. If indexing is accurate, turn l screw counter clockwise to allow derailleur to reach to lowest gear. Troubleshoot your derailleur shifting problems to get your bike drivetrain.
These derailleurs use part of the available spring tension to help drive the shift mechanism in the lever hence, in the same way that an athena pre2015 rear gear should not be mated to a chorus, record or super record revolution 11 type lever set, a potenza rear derailleur should not be mated to a post 2015 chorus, record or super record. Hi, i have a 4 month old team boardman road bike with shimano 105 gearset. Here we are going to be installing a shimano xt m8000 rear derailleur for a 1x11 drivetrain. Gears shift based on tension in the cables, which are adjusted via the barrel adjuster youll find it where the gear cable meets the rear derailleur. Obviously ibe used the micro shift function to fine tune the indexing it if i get it work correctly with one of those gears the other wont index cleanly and viceversa.
Student can identify a rear derailleur in need of adjustment. As far as i know it is the only screw on the rear derailleur that adjusts tension as opposed to setting limits and therefore pretty descriptive. A friction rear derailleur is setup once the limit screws are set and the cable connected. A rear derailleur marked od corresponding to april of 72 was reported by leighton walter. It was then that i saw the axial play in the gpulley and made me erroneously think that it might be the problem. Small adjustments here will put more or less tension into the system and help solve your shifting problems. Press the y button four times to move the rear derailleur 4 steps to the.
Typically, the shifter will be set to the highest small gear and so the cable is under virtually no tension. This is the task which seems to faze so many cyclists, but unnecessarily, in my opionion. It is possible to both check and repair the hanger with a derailleur hanger alignment tool, such as the dag2. Shop for rear derailleurs at rei free shipping on all orders. Making sure your rear gear indexing is properly adjusted means that next time you reach for the shifter to make a gear change youll be. These derailleurs do not have date codes on them, so i believe the coding started sometime between 1970 and april of 1972.
As the derailleur wears, it will develop play at all pivot points. Hi, i tried using the rotor 12speed 19 cassette with my eagle rear derailleur but for some reason the indexing doesnt run smooth only on gears 248 and gear 2 12. I changed from a mtb slx rear mech at the end of last year which had a shortish outer or i would have measured an old one. Shimano di2 rear derailleur misalignment issue bikeradar. You can micro adjust the rear derailleur while riding. A rear derailleur often referred to as a rear mech is the mechanism that moves the chain from cogtocog on the cassette at the rear of the bike. Aug 25, 2017 then the adjustable laser can be moved so that the beam is cast directly on the upper pulley wheel of the rear derailleur. Theoretically that should allow you to perfectly align the derailleur with each gear for perfect indexing, and tune even claims it allows for precise limit adjustments as well. We ride our bikes in the peloton, on the trails and down the mountains. Jul 29, 2017 it is possible to both check and repair the hanger with a derailleur hanger alignment tool, such as the dag2. Adjusting a rear derailleur is an important skill to master.
If the bike has multiple front chainrings, shift the front derailleur to the largest chainring. If there is a gap between these two parts, problems with gear. Sis rear index shifting system the system constituents such as the index mechanism built in the shifting lever, the frictionless sis rear index shifting cable and the smooth action rear derailleur realize the shimano index system. The majority of rear shifting problems can be solved with basic adjustments to the limit screws and index setting of th. To get the indexing to match the sprocket spacing, you will have to check and readjust the place where the cable attaches. Jan, 20 hi, i have a 4 month old team boardman road bike with shimano 105 gearset. The rear derailleur is the mechanism that shifts the chain at the rear sprockets. Put a screw driver that fits your limiter screws and the tool needed to loosen the anchor bolt. There are no compatibility problems, since the indexing is in the shifter and not in the rear derailleur.
It replaced a shimano m730 xt rear derailleur, 1988 vintage, which would only shift up to a 32t cog. The majority of rear shifting problems can be solved with basic adjustments to the limit screws and index. Bicyclesmaintenance and repairderailleursrear derailleur. Shimano ultegra short cage di2 rear derailleur 11speedview product. Drivetrains work best when designed together, so all the parts are in harmony. Frequently asked questions campagnolo velotech cycling. I have a blue prosecco 2018 gravel bike with a standard shimano 105 groupset front derailleur. I have a bike that dates from between 1970 to 1972 that has the original suntour derailleurs. Rear derailleur is properly set up if top pulley is lined up. A fork end b bracket tightening torque 8 10 nm note periodically check that there is no gap between the fork end and the bracket as shown in the illustration. When passing the chain through the rear derailleur, pass it to the rear derailleur body from the side of the pin plate for preventing chain derailment as shown in the illustration. If its clearly bent, your adjustments are not going to work. The seis innovative shift technology is still based on the shimano index. Begin with a visual check of the derailleur hanger.
The latest iteration of shimanos flagship road groupset, still 11speed, is called duraace r9100 while r9150. How to use compatibility tables this article links to tables showing combinations of shifter, rear derailer and sprocket spacing and adapter if used which achieve correct indexing. Apr 26, 2005 the rear derailleur i checked the l and h screw settings, as well as the bscrew. Whether you want to customize your shift speed, set up synchro shift or update your firmware, it is the tool you need to take control of your ride. Thanks to the new design of the parallelogram, the rear derailleur is now lighter and more rigid, with the most effective and fastest shifting. Sram x7 rear derailleur indexing troubles pinkbike forum. Max morgan being out on the trail with your derailleur not shifting through the gears properly can be an aggravating thing.
A blast from the past this is a very obsolete article, which originally appeared in the march 1978 issue of bike world magazine, the first magazine i ever wrote for. Nevertheless, i checked the rear hanger with a ruler, and it looks straight enough see a picture of my inspection here. Refer to our video on hanger alignment to fix this issue. Hi, just got a new used bike, which the seller said the gears needed adjusting so i thought it. The barrel adjuster is found where the cable enters the rear derailleur. I bought a second rear derailleur in case i want to put an 16 10 speed cassette on my 2010 ultegra sti equipped road bike for use in steep mountains. Sram x7 rear derailleur indexing troubles in mechanics lounge. But as components get replaced, it can happen that. It is cableoperated using a shift control on the handlebar or the front of the frame near the handlebar. A friction rear derailer is setup once the limit screws are set and the cable connected. Adjusting the lowhigh stopper bolts is a relatively easy affair.
I am learning and understanding the mechanics of road bikes and have read a lot of info online and watched videos and am attempting to set up the indexing correctly on the rear derailleur. Id like to swap my rear derailleur for the grx rx 812 and put on a 1142 cassette probably the mtb slx cs m7000 cassette. The rear derailleur plate assembly is equipped with a pin or plate that prevents the chain from derailing. If the chain is not passed through the correct position. New shimano 105 rdr7000 irdr7000gsl rear derailleur medium cage, 11 speed. Etube is a powerful platform that lets you take charge of your shifting. Hi, just got a new used bike, which the seller said. This group is later called the nuovo record group when the nuovo record rear derailleur is introduced. On flat bar, indexshifters standard on all modern mountain bikes, they are. Rear mech cable outer length cyclechat cycling forum.
First do micro adjustment finetuning and then set up your limit screws. Upgrading to a more recent model 10speed derailleur only buys you incompatibility. How about using the battery charger with the etube software and using the adjustment screen to get the rear derailleur back into the neutral position of mid adjustment. The rear indexing adjustment should only be done after the hlimit and llimit screws are adjusted.
Hold the rear wheel off the ground somehow pedaling forward with your right hand, use your left hand to push the derailleur in shift into the lowerinward gears. Once back home remember to hook the rear derailleur back fig. Installation of the rear derailleur installation installation of the rear derailleur a b install the rear derailleur. Troubleshooting common rear derailleur shifting problems on a bike. How to microadjust your road bike di2 rear derailleur di2 center. Anyone know the optimum outer cable length for a 105 rear mech on a cannondale synapse aluminuim.
With the derailleur in its relaxed position, the cable can be connected. See how to correct this in our rear derailleur hanger alignment article. Until the 1980s most gear shifters were of the friction type and didnt have clicks in them. The rear derailleur should move the chain to run on the smallest rear sprocket, and the upper jockey wheel of the rear derailleur should be directly underneath the smallest sprocket. Nov 17, 2014 gears shift based on tension in the cables, which are adjusted via the barrel adjuster youll find it where the gear cable meets the rear derailleur. Rear derailleurs spare parts online shop bikediscount. Rear derailleur advanced troubleshooting park tool. Discussion in cycling equipment started by giga watts, apr 26, 2005. The rear derailleur is attached to the frame with a hanger.
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