Shimano today announced the much-anticipated redesign of its workhorse Ultegra groupset. In typical Shimano fashion, the new Ultegra R groupset is a close dialogue between two friends about football match to its Dura-Ace R big brother in terms of both design and functionality, including the same updated four-arm crankset design, enhanced Di2 electronic shifting capabilities, and — finally — true Ultegra-branded hydraulic disc brake controls and calipers in both mechanical and electronic variants.

This is most obvious in the new crankset, which retains an asymmetric four-arm chainring mounting pattern and hollow-forged aluminum construction, but with radically oversized dimensions throughout that Shimano claims provides greater rigidity while nevertheless shaving a couple of grams relative to the current version.

Just like on the latest Dura-Ace R crankset, Ultegra R will feature an inner chainring that is shifted slightly inboard to reduce drivetrain interference on disc-equipped bikes while still officially allowing for chainstays as short as mm.

Available crankarm lengths will include, As before, the Ultegra cassette is built with steel cogs that are attached to a mix of aluminum and carbon fiber composite spiders. Photo: Shimano. Despite the prevalence of BB30, PF30, and BBEVO-equipped frames, Shimano is sticking to its long-standing 24mm-diameter, hollow chromoly bottom bracket spindle configuration; there is no 30mm-diameter version available, and Shimano will continue to rely on third-party solutions to fit its cranks into frames with oversized bottom bracket shells.

Gravel and adventure riders will note the distinct lack of smaller sub-compact or single-ring drivetrain options on Ultegra R, but Shimano has at least expanded the range of available speed CS-R rear cassette choices.

These will include the more traditional road variants T, T, T, Tbut also ones more specifically aimed at long and steep climbs T and T. Aside from the additional gear ratios on the cassette, neither the cassette nor chain on the new Ultegra R groupset have otherwise changed from the previous edition. Photo: Shimano Australia.

All of those cassettes will use chrome plated steel cogs, with the largest ones mounted to a mix of aluminum and composite spiders.

cheapest way to replace Ultegra 6800 50t chainring?

Subscribe to newsletter. Member Log In Join us Become a member. April 9, April 8, April 7, April 6, Like CyclingTips? Click the links below to skip through to a particular section: Ultegra-branded disc brakes at last, and enhanced Dual Control lever ergonomics Revamped front and rear derailleurs for both mechanical and Di2 transmissions Enhanced Di2 functionality New four-arm cranksets, wider-range gearing options Updated wheels and pedals Prices, availability, and claimed weights.

Link has been copied to your clipboard! Subscribe to the newsletter.These cookies allow us and third parties to collect information about you and track your internet behaviour inside and possibly outside our website. Based on this information, we and third parties can adapt advertisements to your interests and profile. By continuing to use our website, we assume that you agree with this.

More information. Trustpilot review 9. Show all in Parts. Show all in Accessories. Show all in Clothing. Show all in Turbo Trainers. Show all in Electronics.

Show all in Maintenance. Show all in Nutrition. Show all in Sale Sale Clearance Outfit of the month. Show all in Sale. Please note: It is busier than usual at our customer service and for our carriers. Check our frequently asked questions. Filter Highlights. New 1. Suitable for. In stock.

ultegra r8000 chainring bolt torque

Webshop Customer Service. Chainring Bolts Great rings, love them. Ligt and stiff. Only issue my fault I bought to replace a ring and they don't fit perfectly lines dont line up but that's fine. Mantel offers these at prices better than anywhere else.

Shimano Ultegra R8000 Chainring

Mantel are my go to internet cycling portal. The chain may go slightly loose when using the 34 ring and the very smallest cog on the cassette. But I never use that anyway. It does what it says on the tin. Cheapest I could find online. Free delivery. All very easy.

These cookies allow us and third parties to collect information about you and track your internet behaviour inside and possibly outside our website. Based on this information, we and third parties can adapt advertisements to your interests and profile. By continuing to use our website, we assume that you agree with this. More information. Trustpilot review 9. Show all in Parts. Show all in Accessories.

Show all in Clothing. Show all in Turbo Trainers. Show all in Electronics. Show all in Maintenance. Show all in Nutrition. Show all in Sale Sale Clearance Outfit of the month. Show all in Sale. Please note: It is busier than usual at our customer service and for our carriers.

Check our frequently asked questions. Road Chainrings. Chainring Type.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Bicycles Stack Exchange is a question and answer site for people who build and repair bicycles, people who train cycling, or commute on bicycles. It only takes a minute to sign up.

In the process I snapped one of them. Each of my installs have used a torque wrench at 14Nm with a Torx T30 bit. I have noticed that when installed on a crank it seems more difficult to push the T30 into the bolt, but when they are removed it is easy to slide the bit into the bolts.

Has anyone else experienced this behaviour from these or other Shimano chainring bolts? Am I doing something wrong if this is happening? Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 10 months ago. Active 1 month ago.

Viewed times. Argenti Apparatus Vitamin-T Vitamin-T 61 4 4 bronze badges. Did you buy the crankset from the LBS you mentioned in the other question?

ultegra r8000 chainring bolt torque

Was the one that snapped from the old crankset or the new crankset? Lopez Jun 17 '19 at I did buy the cranks from my LBS. The one I snapped was from the old crankset.

The new set came with a new set of bolts so I used one from there. I'll update the other question with this - but I did try all 4 new bolts in my troubleshooting as well. Good work - I'd replace all the bolts if one has snapped. Active Oldest Votes. I agree with Argenti, it does not seem likely. Best guess is just a faulty bolt, unless your torque wrench is terribly miscalibrated. I found a site that said that the version of Ultegra uses alloy chainring bolts, so I'd assume the current generation also does.

Again, if the OP used the correct torque, these should not have cracked, but I do wonder if failures may be more common with alloy bolts. Most users don't need to repeatedly install chainrings. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.

Shimano Ultegra R8000 Chainring

Socializing with co-workers while social distancing. Featured on Meta. Community and Moderator guidelines for escalating issues via new response….

Feedback on Q2 Community Roadmap.Toggle navigation. Categories Discussions Sign in. September edited September in Workshop. Afternoon, I've managed to shear the head of a chainring bolt on a ultegra during some sunday maintainance should have gone riding!! Thanks Dan. September Cheers for that - yeah going to have a word with the LBS tomorrow morning and see what they've got note to self next time do maintenance on Saturday Looking at the M part ones they're a couple of mm shorter, assume this hasn't given you any headaches still plenty of thread.

Cheers for replying btw, when I found the price of the shimano ones I thought exactly the same about the price! Posts: 1, I paid a tenner at SJS Cycles for a pack of 4. M8 x Hi Dan Did exactly as you have done to my chainset back in August. These bolts are perfect fit, and actually better than the shimano torx ones as they're an allen head which sort of goes inside the bolt, making it harder to shear - so I replaced them all.

Cheers guys, have got some ordered, will probably do the same and swap all of them out! Sign In or Register to comment.Mantel offers these at prices better than anywhere else. Mantel are my go to internet cycling portal. The chain may go slightly loose when using the 34 ring and the very smallest cog on the cassette. But I never use that anyway. It does what it says on the tin. Cheapest I could find online. Free delivery.

Chainring Bolts

All very easy. These cookies allow us and third parties to collect information about you and track your internet behaviour inside and possibly outside our website. Based on this information, we and third parties can adapt advertisements to your interests and profile. By continuing to use our website, we assume that you agree with this.

More information. Trustpilot review 9. Show all in Parts. Show all in Accessories. Show all in Clothing. Show all in Turbo Trainers. Show all in Electronics. Show all in Maintenance. Show all in Nutrition. Show all in Sale Sale Clearance Outfit of the month. Show all in Sale. Please note: It is busier than usual at our customer service and for our carriers.

Check our frequently asked questions. Road Chainrings. Chainring Type. Please select: Chainring Type to see the stock. Number of teeth. Please select: Number of teeth to see the stock. Recommended combination. Please select: Recommended combination to see the stock.

From Add to basket. View the stock Please select a version to see the stock. Any questions?Forum Rules. Get the latest roadbike reviews, news, race results, and much more by signing up for the Roadbikereview Newsletter. Login Register. Remember Me? Results 1 to 20 of Thread: New Ultegra compatibility with Specifically I'm wondering if the new rear derailleur and cassette will work with hydro shifters. It'll work just fine, there was no change to the cable pull.

R is just a refinement of The change is in the front and it's with the crankset and chainring spacing. They're going to want the new crankset to be paired with the new front mech.

How To Change Chainrings - Changing Your Chain Rings For Road Or Mountain Bikes

Other than that it's all compatible. Originally Posted by Marc. Oh lord They are the market leader. Those companies are more than welcome to market components to fill the odd gaps in Shimano's products. Shimano's target customer with this group set is the mainstream built road bike market. The compact gearing available up to 11x34 is more than enougheven for the majority of the adventure bike crowd.

The only difference is that the crank has moved the small ring inboard by. The front derailleur has been profiled to allow it to move closer to the seat tube before it contacts and stops moving.

ultegra r8000 chainring bolt torque

Most bikes will have no issue here, but a handful may find their older derailleur may not be capable of moving far enough inboard to stop chain rub in the climbing gears.

Not may bikes will have this issue, but a few will.