shimano dura ace cs 7900 10 speed cassettescooter's prickly pear infusion recipe
In contrast, Dura-Ace 7800 requires a 20-degree throw for both upshifts and single downshifts, so if anything, downshift throw on 7900 has gottenlonger. $27.00 + $11.75 shipping. Shimano Dura-Ace 7900 offers a variety of notable improvements over. Sunrace CS-RX0 road cassette 10-speed Super Fluid Drive 11-32T. from 23.45 . Reviews. A: Also, it is a fairly amazing product for the price. No matter your riding level, you can experience the best road performance available. Shimano CS-7800 Dura Ace Cassette 12-27 - One Left - Computer designed Hyperglide (HG) sprockets incorporate specifically positioned shift ramps and tooth profiles for improved chain control during shifting. For many, the high-sheen 10-speed Dura-Ace was the most striking looking and best . Works well. My bike has a Shimano Hyperglide CS-6600 12-25 ten-speed (no longer made), with a Dura-Ace derailleur. . Sign in to manage your newsletter preferences. Your question might be answered by sellers, manufacturers, or customers who bought this product. Brief content visible, double tap to read full content. COMPATIBLE WITH DURA-ACE DEEP-SPLINE HUBS. However, we think it unlikely anyone will complain this time around. The spacer needed to fit in a 9/10 speed Shimano hub in my WH7700 wheel is included. Please try again. This is fine for a person with limited funds. Bid amount - Enter GBP 31.00 or more. Qualitt wie immer. A 11-28 is a cheaper alternative to compact cranks for 55 yr old knees. A guide to understanding and calculating bicycle gear inches. . C $123.44 Find many great new & used options and get the best deals for Shimano Dura-Ace CS-7900 10 Speed Cassette at the best online prices at Free shipping for many products. However, Dura-Ace 7900 also carries with it a hefty price hike (about US$450), a polarising two-tone finish, somewhat disappointing rear shift performance and some irritating quirks. Please make sure that you are posting in the form of a question. Shimano Dura-Ace 7900 offers a variety of notable improvements over 7800 such as the absolutely fantastic front shifting and superb brakes. Conversion of Shimano Dura-ace 7900 7850 wheels to 11 speed. Thanks! COMPATIBLE WITH DURA-ACE DEEP-SPLINE HUBS. Chances are good that you'd only need new front right brifter, chain, and 10-speed cassett. Amazon has encountered an error. Weighs 176g on my scale. SHIMANO BIKE-US And the price is far more better than in a bike shop here in Qubec. The 11-28 cassette is 192g and chain is 249g. Entdecke Shimano Dura-Ace 10S Kassettenkettenrad Cs-7900 in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! Shimano Dura-Ace CS-7900 Cassette 10 Speed 12-25T Road Bike Silver Cycling. The new asymmetric chain is superb, though, running whisper-quiet highlighting the relative clamour of SRAM Red and offering real-world improvements in shift smoothness both up and down and at either end over last years 10-speed chain. 5.0 out of 5 stars based on 15 product ratings, 5.0 out of 5 stars based on 2 product ratings, 4.8 out of 5 stars based on 28 product ratings, 5.0 out of 5 stars based on 11 product ratings, 5.0 out of 5 stars based on 13 product ratings, 4.8 out of 5 stars based on 25 product ratings. Many readers have lamented the revised cable pull ratio on 7900 thus sullying the idea of mixing groups but if that is what was required to get this level of performance, so be it. Needde only two chains for the entire period. Already have an account with us? item 4 Shimano Dura Ace 7900 CS-7900 10 Speed Cassette 11-25T Titanium, 9/10 EXC+. Disclaimer: Content on this site is for reference purposes and is not a substitute for advice from a licensed health-care professional. Find many great new & used options and get the best deals for Shimano Dura Ace 7900 CS-7900 10 Speed Cassette 12-25T Titanium, . You've been subscribed to our newsletter. Shimano Ultegra 6700 11-28T 10-Speed Cassette - Silver. Shop by category. Thats hardly a bad thing considering 7800s benchmark status, and the fact that 7900 continues to be competitive weight-wise with carbon and in some cases, even better is testament to Shimanos superior forging capabilities. As a result, it is not possible to install cassettes other than 10-speed models on Dura-Ace 7800 hubs. Shimano 105 CS-5700 10 Speed Cassette Description: Computer designed Hyperglide (HG) sprockets incorporate . Please use a different way to share. Shimano Dura Ace 7900 CS-7900 10 Speed Cassette 12-25T Titanium Gears all look to be in good shape. . Success! Genuine Shimano product, received new in package. All prices are in Euro and incl. The Ultegra 10sp 11 to 28 tooth version is reasonably robust & light weight. Q: Allerdings sollte man die Kette regelmig (~3000km) wechseln, damit der Kranz auch lange hlt. Shiman Dura Ace CS-9000 Cassette 11-28. Shimano makes a big deal of the shorter shift-lever throws on Dura-Ace 9100, with a claimed 24% decrease on the main lever, and a somewhat less dramatic 14% change on the secondary lever that . $38.00 (4) 4 reviews with an average rating of 4.8 . . Advanced: Daily Deals; Brand Outlet; Help & Contact . Cassettes listed below will fit most Shimano and Shimano-compatible Freehub bodies, with the following exceptions: Shimano FH-7800 and FH-7801 aluminum 10-speed bodies with tall splines work only with 10-speed sprockets. Shimano Dura Ace CS . Unfortunately, this item cannot be shipped to U.S.A.. Topseller. At least in this second go-around one neednt remove the tiny retaining screw to pull off the plate, though we doubt most people will pick up on that fact so theyll lose the little guys anyway. Condition. 13-23 in box with paperworkBought to do a restore and ended up selling the bike . You can't beat the quality of Dura-ace. Shifting performance up and down is almost always smooth and positive, although sometimes the transitions are so smooth you catch yourself wondering whether it has changed gear at all. We quickly found ourselves braking later and harder in corners, yet exiting with more momentum. COMPONENT 7900s increased cable pull is such that any combination of new and old simply doesnt work at all. Featuring four titanium cogs, the new Dura-Ace 7900 cogset has further improved shifting quality by creating a more rigid aluminium carrier unit along with a re-engineered tooth profile. . Move cursor over small images to enlarge. Includes 11 speed freehub spacer. Kopen shimano dura ace cassette 6 speed van slechts 33.20 shimano dura ace cassette 6 speed. Freehub Compatibility:Shimano/SRAM 8/9/10, Freehub Compatibility:Shimano 10 Speed Only. Some exceptions apply. Dura-Ace Hollowtech II Double Crankset/FC-7900. The pinnacle of Shimano technology and innovation, the new 12-speed R9200 DURA-ACE is our fastest ever. Cassette Replacement, Installation, and Cleaning, 11/21 Tooth (11, 12, 13, 14, 15, 16, 17, 18, 19, 21); 155 grams, 11/23 Tooth (11, 12, 13, 14, 15, 16, 17, 19, 21, 23); 161 grams, 11/25 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 23, 25); 178 grams, 11/27 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 24, 27); 182 grams, 11/28 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 24, 28); 185 grams, 12/23 Tooth (12, 13, 14, 15, 16, 17, 18, 19, 21, 23); 178 grams, 12/25 Tooth (12, 13, 14, 15, 16, 17, 19, 21, 23, 25); 185 grams, 12/27 Tooth (12, 13, 14, 15, 16, 17, 19, 21, 24, 27); 190 grams. SHIMANO SERVICE CENTERS I use this with a 7900 chain with Ultegra 6703 on the front. . The Ultegra 10 speed cassettes also accommodate the taller splines of the 7800 hubs. I do not see 12-27t from your availab, A: Yoyoapple Bike Water Bottle Holder Durable Plastic Water Bottle Holder for Bike Lightweight Pp Bike Bottle Holder for MTB, Road Bike, Mountain Bikes, CloudValley for Airtag Bike Mount, Hidden Bicycle GPS Tracker Anti Theft Aluminum Alloy Holder & Hard PC Waterproof Protective Cover for Bicycle Bottle Cage Holder Universal (Security Screws Included), Yoyoapple Bike Cup Holder Cute Pineapple Drink Holder Bicycle Water Bottle Holder with Metal Clamp for Beach Cruiser Motorcycle Bike Boat Stroller Walker Wheelchair Scooter Golf Cart Desk, Reshow Dictating Blank Microcassette Tapes - Microassette Tapes for Recording MC-60 Minutes Suited for Lectures and Seminars -3 Pack, Nuo desire 11 Speed Cassette 11-40T,11-42T,11-46T,11-50T Cassette 11 Speed,Compatible Shimano and Sram Standard HG Hub for Mountain Bike Road Bicycle, VG SPORTS 8/9/10/11/12 Speed Ultra-Light Bike Cassette for Mountain Bike 11-40T/11-42T/11-46T/11-50T/11-52T MTB Cassette Lightweight Aluminum Bracket Cassette. All this means that the cassette weighs in at a paltry 185g. Shimano Dura-Ace 7900 10 Speed Road Cassette, Fenwicks Professional Carbon Fibre Assembly Paste, Campagnolo Super Record 12 Speed Road Cassette, Campagnolo Ekar 13 Speed Gravel Cassette 2021, Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load, Close ratio gearing allows a more efficient use of energy through finer cadence control, Largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity, 4 largest sprockets are made from titanium to reduce weight without sacrificing strength, Sprockets are extensively cut away and drilled to further reduce weight without reducing rigidity, Nickel-plated finish offers hard wearing resistance to corrosion. But if youre currently 7800-equipped, the motivation for dropping the very substantial amount of cash on 7900 isless compelling. item 1 Shimano DURA ACE 7900 CS-7900 12-25 10 speed Cassette, 8/10 VG, Pre-Owned. Shimano Dura-Ace CS-R9200 Cassette 12 Speed. Join Our FreeVIP Club to ReceiveAdditional Discounts, Earn Credit RebatesToward your Next Order. > Moreover, the reach adjust screw and the brake cable are concealed by a small cover plate reminiscent of Dura-Ace 7700. Upshifts still require a lengthy 20-degree arc (or 40mm of linear throw, 30mm of which is nothing but slop) and single downshifts an even longer 27 degrees or so. Weighing in at just 173 grams (11-23 model), it boasts a new surface treatment that increases durability by approximately 30%. Simply the best, lives up to it's reputation. The adjustable reach feature is nice to have but doing so leaves an uncharacteristically unsightly gap that smacks of afterthought. So pleased I ordered a second one for a spare set of wheels. No chain-sucks for ~15K kilometers, which normally should already has happended by far. Free postage. Shimano Dura-Ace CS7800 cassette 10 speed 11-21. The store will not work correctly in the case when cookies are disabled. Larger driving cogs maximize drivetrain efficiency and create compatibility with both SHIMANO 11 and 12-speed freehub bodies. Lieferung war ok. Treten muss man noch immer selber ;-). Try us today to see why so many of our customers come back again and again. 10-speed, smoother shifting, with less wear. A convenient master link (not tested here, unfortunately) makes for easier removal for cleaning, too, eliminating the need for expensive single-use pins. The new leverfeels more substantial, with a significant increase in girth (roughly 165mm vs 140mm at the base), while the flatter and longer top distributes pressure more evenly for better long-term comfort. Shimano Dura-Ace CS-7900 Cassette 10 Speed 11-25T. |, Shimanos latest Dura-Ace group is a big step forwards in some ways, but not in others, The new STI Dual Control levers offer a drastically different shape from Dura-Ace 7800, Last years dip in the top of the lever has been replaced by a flatter and wider perch, The new carbon brake lever is canted outwards a few degrees for an easier reach from the hoods, Shimano use an annoying cover plate that must be removed in order to adjust reach or replace the brake cable, Shortening the reach leaves an unsightly gap an oversight atypical of Shimano, Derailleur housing now runs beneath the handlebar tape and can be run either in front or behind the bar, Running the derailleur housing in front leaves a sharp edge at the rear of the lever though, The shifter internals are dangerously exposed to the elements, The new Flight Deck computer is far easier to install just remove the top of the shifter and bolt on the new bits, The new crankset is undoubtedly one of the stars of the group and is now offered in a compact version as well, The deep-profile spider arms and incredibly expensive outer chainring yield superb front shifting performance, The heavily relieved spider keeps the weight down, Shimano retain last years arm attachment method, The revised front derailleur cage is wider than before yet shifts superbly and also runs rub-free in the large chainring with no need for trim, Revised front derailleur pivot geometry requires more cable pull at the lever but yields a lighter feel that requires less effort, Rear shifts are as impeccably smooth and precise as before, The carbon fibre pulley cage is curiously flexy but this doesnt seem to affect shift performance, Braking is superb with the new calipers and revised cable pull ratio, Aggressive yet careful machining sheds weight while retaining stiffness. In either case, the distinction is subtle but still noticeable and definitely doesnt come close to matching the performance of a properly matched 7900 set. Shimanos head-to-toe overhaul of its premier Dura-Ace road group has yielded a dramatically new appearance, some long awaited features, lighter weight and a far heftier price tag. Please try again later. Shimanos top of the range RT-MT900 Ice Tech rotors providing consistent braking performance through energy control, using revolutionary stainless steel / alloy 3-layer sandwich construction that manages heat while riding. The largest four cogs are made from titanium. . Perhaps Shimano were measuring 7900s throws from a vertical line? Orders over $50are shipped free (USA only, excluding AK and HI). Your question might be answered by sellers, manufacturers, or customers who bought this product. See Shipping for details. Shimano . The auction listing for this product that will end the soonest.Includes items in all conditions except 'For parts or not working.'. The cassette is available in eight different sizes: 11-21t, 11-23t, 11-25t, 11-27t, 11-28t, 12-23t, 12-25t and 12-27t. item 2 SHIMANO DURA ACE CS-7900 10 SPEED 12-25T CASSETTE WITH LOCK RING, Pre-Owned. Some 20-50 grams heavier than the 9-speed. I think this works better than Shimano's recommended 6600 chain with the 6703 up front and ultegra cassette in the rear. Click to Learn More. In Stock. item 1 SHIMANO DURA ACE CS-7900 10 SPEED 12-25T CASSETTE WITH LOCK RING SHIMANO DURA ACE CS-7900 10 SPEED 12-25T CASSETTE WITH LOCK RING. Chain movement across the cassette, though, is impeccably smooth aided in part by the new asymmetrical chain and full-power shifts are as reliable as ever in spite of the curiously flexy carbon rear derailleur cage. But while ungodly expensive, its also ungodly good. The cassette had obviously been installed previously and then loosely put back into the torn box and resold. Clear: SHIMANO DURA-ACE DI2 STI ST-9070 2-/11-SPEED SHIFT/BRAKE LEVERS quantity. SHIMANO DURA-ACE 10 Speed Cassette Cs-7900 - 30.00. Answer the question . 10 speed 11-25 cassette. There are 0 reviews and 1 rating from the United States. These units are otherwise as new. hi, i am replacing "Shimano 105, 10-speed, 12-27t". Teeth don't show much wear, has plenty of life left, see photos! Add Deore CS-M6100 12-Speed Cassette to Compare Shimano HG-50 8-Speed Cassette. Kostet etwa 3x so viel, wiegt weniger, hlt etwa 4x so lange wie Ultegra. Was soll man zu einer Shimano Dura Ace Kassette gro schreiben? Even during maximal efforts up a climb or nearing the finish line, riders no longer need to back off to perform a shift. Amazon has encountered an error. Condition:: For parts or not working: An item that does not function as intended and is not fully operational. Full content visible, double tap to read brief content. I reviewed the initial top line equipment listed in my Scott bike specs and this is what was needed. 4 largest sprockets are made from titanium to reduce weight without sacrificing strength. But in any case, , Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.Learn more how customers reviews work on Amazon. The sloppy repackaging and a smudge of dirty grease in one spot was evidence of this. Es mag leichtere Kassetten geben - Haltbarkeit und vor allem vllig problemloses Schalten selbst mit der alten Dura Ace 7800 (Bj. . . Well worth it along with upgrade of rear derailleur to Utegra. . Free shipping for many products! black (TAU) 44.45 . The cassette also hasnt changed much, gaining an extra titanium cog in certain configurations and losing a few grams courtesy of some more aggressive machining and stamping. Shimano Dura-Ace 7800, Ultegra CS-6600, 10 speed Cog Spacer (2.35mm) Shimano Cassette Spacers read more. Information on the Collection of Customer Ratings, Everything in "Backpacks, Bags & Panniers", Everything in "Indoor Cycling & Training", Everything in "Bike Repair Stands & Bike Holders", Everything in "Hardware & Assembly Materials", improved shifting function for more precise shifts and less weight, super-light, high-strength aluminium carrier, the four largest sprockets (7 to 10) made of titanium for less weight, higher rigidity, nickel-plated steel sprocket , anodised lockring, 1 x Shimano 1 mm spacer (to mount to 8-/9-/10-speed freehub bodies). > .. The Shimano Dura-Ace 7900 10-Speed Road Cassette shaves 10 grams from the previous model without sacrificing strength; the close gear ratios allow effective and efficient cadence control. Want to save on all your Bike Tires Direct purchases? more sprockets are made of titanium to reduce weight and increase stiffness. I fitted a KMC X10-SL Gold chain and it made the shifting much smoother and quieter. These reviews have not been given a green check mark. "Wow, this is a great deal!" Weighing in at just 173 grams (11-23 model), it boasts a new . The chain had to be replaced two times, since and Im deeply impressed, because Im a little heavier than before and did succeed in sprints, more, and the cn-7700 didnt last as long as the new chain, either. Excellent looking product. Discover magazines for sports lovers, and outdoor enthusiasts. box arrived really beat up/opened, actual cassette solid, Reviewed in the United States on January 30, 2023. replaced some Shimano mountain bike cassettes with this, LBS mentioned I might need a new chain as well but luckily that wasn't necessary. Available in 8 different gear combinations. |. Despite even wider gear ranges, smooth, consistent gear steps remain a Shimano hallmark thanks to the addition of the 12th cog. The Dura-Ace CS-7900 10-speed cassette by Shimano - weight-optimised and torsion-resistant. Free shipping for many products! The Shimano Dura-Ace CS-7900 10-Speed Cassette has very swish sounding Hyperglide sprockets and an alloy carrier: these equal high strength, a light weight and smooth shifting. Shimano Dura-Ace 7900 Cassette | CS-7900. AU $117.47 + AU $51.88 postage. Shimano has combined all its development know-how with the latest technologies to reach a new level of perfection. Shop New Old Stock; Shimano Dura Ace + 9000/9100; 7900; 7800; 7700; Shimano Ultegra + 8000; 6800; 6700; 6600; 6500; Shimano 105; Shimano GRX; Shimano XTR & SLX; 9of10customers found this review helpful. BuyShimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store. Tax included. Shimano brakes, gears, components and cycling accessories incorporate more than 45 years of cycling vigour built into each design; their experience and expertise make them the popular choice of the professional and amateur cyclist the world over. Dont miss out on our exclusive tips and offers! and offering real-world improvements in shift smoothness both up and down and at either end over last year's 10-speed chain. NB - this rotor is s .. 54.99.Free P & P. The Shimano Dura-Ace CS-7900 cassette provides you with a wealth of gearing options unlike any previous generation of Dura-Ace. These units can be purchased at a discount (see option select). Shimano Dura ace cassette CS-7900, 10 speed, 11/28T . Sign up here for exclusive discount offers. Theyre bigger and easier to use while on the road and produce smoother housing runs, especially out back on compact frames or on any bike with less than ideal routing. i doesnt semm to eat-op chains like mad, too. Please note that the CS-9000 is only compatible with corresponding Dura-Ace 9000 components. Trending price is based on prices over last 90 days. Reviewed in the United States on September 15, 2022. Limited stocks remaining. Weighs 176g on my scale. MwSt plus shipping cost to the delivery destination: Germany. REIservice Free shipping for many products! Ships Free! CS-6700 or CS-7900? Features. Shimano Parts Dura Ace 10-speed cassette with superlight rigid aluminium spider and improved shifting performance. As the 10 speed cassettes have a 1mm spacer behind them, this makes the feeehub 1.85mm wider. I use this cassette on my Cervlo R3 and it it procures very precise and smooth shifting. Shimano. Reasonably hard wearing and fairly light too, Shimano Dura-Ace CS-7900 cassette review, GBP 179.99 RRP 3 of 3 customers found this review helpful. In any gear, DURA-ACE R9250 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing 11-speed freehub bodies. Good product. Rechnet sich also. PRODUCT SHIMANO XTR ENDURO BR-M9120 DISC BRAKE SET W/ RESIN PADS J-KIT $ 323.00. Read it's strength, weaknesses, find deals and pricing - roadbikereview.com. Here's a scenario: You go down to your LBS and pick up a bike off the shelf. Description. SHIMANO : Model Name Dura Ace 7900 : Color silber : Suggested Users unisex : Number of Items 1 : Manufacturer Shimano : Part Number CS7900125 : Model Year 2015 : Size 11-25 Zhne : Sport Type Cycling : Super light and it's shiny! Yes, this is a 10 speed cassette and will fit.. Q: Subscribe from just 13.50 and get a Lezyne Pocket Drive Pump, worth 29! This cassette features close ratio gearing for sublime performance, and it's corrosion resistant too, so it will stay nice and shiny. More gearing options in a stiffer and lighter cassette. Ultegra is a good bet and not a budget buster. The new Dura-Ace group boasts a variety of improvements, and the 10 speed cassette is no exception. We had grand expectations for 7900 after countless hours on Shimanos latest XTR mountain bike triggers, what with their faster Instant Release cable spool and slick Multi-Release feature for multiple upshifts. Car & Truck Safety & Security Accessories. SLX CS-M7100 Cassette - 12-Speed, 10-45t, Silver/Black, Micro Spline. Here's a scenario: You go down to your LBS and pick up a bike off the shelf. Bike Tires Direct always has a good selection, prompt deliveries and competitive pricing. In fact, the cassette is even being offered in a massive 11-28t range for the go-anywhere-rider. Alloy carrier increases stiffness and shaves weight. The concealed cables may yield a cleaner look but some riders will miss the extra hand position that 7800s bulbous forward knob provided left in its place is asmaller nub that just doesnt leave as much to hold onto, and there are no cables on which to hook your thumbs. Enter Dura-Ace 7900 and we got none of the above. Shifts, spins and more! Find many great new & used options and get the best deals for Shimano Dura Ace 9200 12 speed cassette 11-34t at the best online prices at eBay! The largest four cogs are made from titanium. 11/28 version must be used . BikeRadars technical editor James Huang spent five months on this new flagship and found it to be a definite improvement in some areas but disappointing in others. Nothing not to love. $. Teiletyp: : N/A: Marke: : N/A . Dura-Ace 10-Speed Chain/CN-7900. Our website displays reviews from before and after 28.05.2022. Revised cable pull ratios yield a lighter lever feel and the ultra-stiff hollow outer chainring and revised front derailleur yield shift performance as reliable and smooth under power as on the rear its no wonder sponsored riders quickly embraced the new chainring even on older Dura-Ace or SRM cranksets. Receive free emails straight to your inbox each week. Product Description. This was hard to get a straight answer on before purchase, but yes, it fits those pesky 10 speed Dura-Ace Genuine Shimano product, received new in package. Shimano's Ultegra-level 10-speed features trickle-down technology from their 10-speed Dura-Ace 7900 group, and is a great choice for those looking to save a little cash without sacrificing performance or adding too much weight. Our data protection agreementdata protection agreement applies. Derailleurs are 160g rear and 60g front. Ich verkaufe eine Shimano Dura Ace CS-7900 Kassette 10-fach Dura Ace 10-fach 234913747518. 2007) machen diese Kassette fr mich alternativlos. They tell you its a 105 bike and you are super excited to get a bike with great kit for a great price. our data protection agreementour data protection agreement. Free shipping for many products! Flatlanders and time trial specialist can still have their 11-21, but now an 11-25, 11-27, and 11-28 are offered so you can go up and down the hills with ease. Featuring four titanium cogs, the new Dura-Ace 7900 cogset has further improved shifting quality by creating a more rigid aluminium carrier unit along with a re-engineered tooth profile. This item may be a floor model or store return that has been used.See details for description of any imperfections. This Dura-Ace 10-speed cassette is typically lightweight and designed for maximum performance. Some restrictions apply: The Dura-Ace 7900 cassette features an updated tooth design for optimal shifting and minimal friction when used with the 7900 chain.