how to clamp carbon frame in bike stand

I’ve read a few threads about clamping a carbon bike by the top … I’ve always done the same thing with ’em on the front as well, simply bend the whole works (using the derailleur itself as a lever) until the cage lines up correctly. 95. If using soft travel cases or … It better distributes stresses and loads through the bicycle frame, offering superior stability while eliminating possible crushing or damage to thin-walled and shaped tubing. Most repair stands feature a clamp that you tighten around the seatpost but the PRS-22 is an entirely different design in that your bike is supported by a central beam. I clamp my bikes by the seat post (they are aluminium seat posts on my bkes) for maintaince tasks that dont involve a lot of force (like removing bottom brakets) If I need to apply a lot of force then I put my bike on the ground and support it with my body. I have used Feedback stands on aero bikes, I would clamp either just below the saddle (turn the clamp so the open end faces the rear of the bike). Now you should be able to repair your bike without breaking it! Yes, I align bent rear derailleur hangers, using a hanger alignment tool as I mentioned in a previous column. If you do bend on one of these braze-ons with a Crescent wrench, you can see the tube flex as the point of the braze-on pushes into it, and this is where my beer-canning comment came from. New Year, Fitter You. The 10 Bike Shop Customer Etiquette Commandments, Why You Should Be Using Food and Training Logs, Performance Hurricane Max Floor Pump Review. KAC Overdrive Bike Frame Telescope Mount Bar Adapter (Quick Release Clamp Version) - Bicycle Cross Bar - for Y-Frame, Dual Suspension, Cruiser Bikes – RV Use Prohibited 4.6 out of 5 stars 49 $35.99 $ 35 . The bar is octagonal shaped and allows you to clamp onto it much tighter than you would your frame or seat post. I’ve assembled hundreds of Italian and American lugged steel bikes with braze-on fittings for front derailleurs over the years — never had the “beer-can” effect happen. Some clamps don’t always have a great rotation amount, which means that you might find it difficult to make some of those trickier repairs. For those reasons, I use a stand (custom made, in my case) that holds the BB and the front forks. When transporting your bike with a car rack, only fix your bike at the seatpost or fork dropout and never clamp the bike on any frame tube. Excellent selection of quality bike tools and workstands from all the top brands. When the customer switches wheels to the set with a Force AXS 10-33 12-speed cassette, he has to switch to a Force AXS Flattop chain, as its larger rollers match the tooth valleys in the cassette. Wide selection of bike tools and repair stands from Park, Lezyne, Pedro's, and more. I know that you can often get away with tweaking a front derailleur boss, and your method of bending by pulling on the derailleur itself is better for this issue than bending the braze-on alone with a Crescent wrench, because the derailleur cage probably is what is getting bent more than the braze-on or the seat tube. Sturdy clamps to help hold your bike securely in your favorite repair stand. Tightening it onto a curvy carbon tube and tightening it enough to secure the bike is a recipe for frame damage. Certainly, the spiral ribs inside of a Columbus SLX seat tube, if the point is sitting on one of these ribs, can resist this flexing and possible beer-canning of the tube. Or, on my bikes with oddly-shaped posts, I’ve used a fork mount stand. Best bike storage ideas: a buyer’s guide to storing your bike indoors The products mentioned in this article are selected or reviewed independently by our journalists. ― Lennard, Dear Lennard, With removable aluminum ones I’d do the same, but only after making sure I had a replacement, just-in-case, though I’ve never had one break off. Arrives before Christmas. … It is ideal for carbon fiber bikes because there is no chance of damage since there are no clamps on the cross bars of the bike. I couldn’t help but wonder what you’d do with a rear derailleur hanger that was misaligned? For one, it’s worth noting that if you use a clamp-on type stand with a carbon bike, only attach it to your seatpost, as other areas can be damaged by the forces exerted. The bike can be rotated 360 degrees, and will hold firm in any position to allow clear access for any kind of repair. There is a point on either end of the base of the braze-on that can push into the seat tube. Do not clamp any children’s seat or trailer couplings on your carbon frame. WODONGTECH Bike Stand for Maintenance Rack Bicycle Storage Racks Garage Mountain Wall Mount Repair Clamp Indoor Workstand Bench with Anti-Scratch Protective Cover. Shops and professional mechanics will appreciate being able to lift a bike onto the stand without worrying about cracking a frame or seat post or having it flop around. I have always used an aluminum seatpost and clamped that. Personal ID for long-distance cyclists - fits on your wrist and weighs nothing. You can read more about the compatibility of SRAM road 12-speed chains, cassettes and chainrings. There was no need to change the SRAM X01 Eagle AXS 12-speed rear derailleur, because it works with both chains and cassettes. But I understand that if someone had responded to the question this way and the result was the “beer-canning” of the guys treasured frame’s seat tube, YOU would get the blame. Just resting the bike on the clamp for storage like OP did is fine. I can see why this might be a problem as I do ratchet my Thule 591 quite tight on my alloy frame bike and the same effort might crush a tube but I wondered if anyone had actually goosed a frame on Join Active Pass to get VeloNews magazine, access to exclusive content, 1,000s of training plans, and more. You never know when someone might clamp your carbon post a little too tight. Never clamp the frame. 1) You must remove the carbon fibre seatpost and replace it with an aluminum or alloy seatpost and then clamp that seatpost into the workstand. Whether it's because of inexperience or lack of time, I'm sure it happens. Can you use any narrow/wide chain with the SRAM force AXS rear derailleur, or am I limited to the SRAM flat chain? The crack likely wouldn’t happen at the time of the bending; rather, it would develop over time. Sign-up below to get our free ebook as part of the "Weekly Wrench" newsletter: If you are among the many riders who are on carbon bikes or at least using a carbon seatpost, you might be wondering: "Where do I clamp the bike when I put it in a repair stand?". Get the latest race news, results, commentary, and tech, delivered to your inbox. THE SOLUTION The HIROBEL is a specially designed clamp for bicycle repair stands which makes it easier to work on your bike. Using grooved, rubber wheels and secure rubber bindings, their Carbon Frame Clamp is designed to hold a bicycle frame securely without damaging it by spreading the pressure across multiple contact points. Photo: Rob Arnold, Dear Lennard, If you're working on the dropper, you lean the back wheel against the stand and put a toe strap around it so it can't move. He is also a custom frame builder (www.zinncycles.com) and purveyor of non-custom huge bikes (bikeclydesdale.com), a former U.S. national team rider, co-author of “The Haywire Heart,” and author of many bicycle books including “Zinn and the Art of Road Bike Maintenance,” “DVD, as well as “Zinn and the Art of Triathlon Bikes” and “Zinn’s Cycling Primer: Maintenance Tips and Skill Building for Cyclists.” He holds a bachelor’s in physics from Colorado College. That is usually one of the thinnest walls on the bike, it is not designed to take clamping forces. The octogonal rail will not roll in the repair stand clamp. Get 15% Off Membership →, New Year, Fitter You. That's because a seatpost can be replaced relatively easily, while the bike's seat tube is a bit harder to replace! That will help protect it from damaging scratches and help prevent the logo from rubbing off. Also, the flat sides fit well on clamps that also have flat sides and minimize rotational slipping even more. Place your bike in a stand by extending the seat post and positioning the stand clamp on the extended seat post. I saw your technical FAQ here about mullet drivetrains. (Think about it: most mechanics make minimum wage and might not care all that much about your bike.). You mentioned that you had someone with the 10-33 cassette on a second set of wheels. DO NOT CLAMP THE TOP TUBE (edit: of a carbon or lightweight aluminum bike)!!!!! Are you looking for a work stand for your mountain bike but don't feel like forking over the big bucks for a "shop worthy" model? Regardless, it only takes one small mistake to ruin a carbon post, so it's best to use the aluminum post method. It's worth the hassle if it means saving a $100 seatpost! The general rule has always been to clamp the bike by the seatpost (assuming the repair stand in question involves a clamp, as most do.) The bumpers and straps are gentle on your bike and require far less force than a repair stand clamp to keep it stable. On the X01 Eagle 10-50 12-speed cassette, we used a GX Eagle chain. That’s because the teeth and valleys on the rear AXS road cogs are designed to mate with the larger rollers in the Flattop chain. So what if you have a carbon seatpost? Your bike can be rotated while in the work stand, giving easy access to all areas. New Year, Fitter You. Hirobel is a specially designed clamp for bicycle repair stands which makes it easier to work on your bike. Can’t say I’ve done this on a Colnago Master, which I assume is steel, but I have never had an issue on the hundreds of steel frames with front braze-on mounts I’ve worked on over the years. Or, on my bikes with oddly-shaped posts, I’ve used a fork mount stand. ― Lennard, One can bend rear derailleur hangers back into place, using a hanger alignment tool.Photo: Caley Fretz. The “Euro-Stand” fits all bikes with axle diameters up to 15 mm. When the wheel cannot move then the excessive loads on the dropouts can damage the frame. #1 Top-Rated Repair Stand www.REI.com — Taber, Dear Taber, If the seatpost is carbon, stick an old aluminum one in there during repairs. don’t extend beyond the M iN MUM NSERT line marked on the seat post. I suspect that bending the braze-on played a role in some, if not all, of those tube failures. Create a personalized feed and bookmark your favorites. Once the bar was installed it’s very simple and fairly nice to use. Get it as soon as Tue, Dec 22. It better distributes stresses and loads through the bicycle frame, offering superior stability while eliminating possible crushing or damage to thin-walled and shaped tubing. There definitely is something way better; this Hirobel clamp is what we use in my shop for clamping carbon bikes. I suppose a “Conan the Barbarian” type mechanic (and I’ve seen my share) could ruin anything, but I wonder about the strength/integrity of a seat tube and braze-on so easily “beer canned” under normal use? Due to the much smaller largest cog on the Force cassette, we made the length of the Force chain shorter than the GX Eagle chain. Instead, if you have a round aluminum seatpost, clamp that. — Julien. [UPDATE] In contrast to my clamping method shown in the video I’ve learned since that it’s a much better idea to clamp the bike on the seat stay. This needs to be well padded, adjustable, with easy rotation, as well as looking good too. I do remember something about SLX tubes having their internal ribbing oriented to reinforce this area but whether the tubing was Columbus, Reynolds, True-Temper, Oria or Deddacciai, it was always pretty simple to bolt on the front derailleur securely and then check the alignment in relation to the chainrings and if things didn’t line up just right, gently and carefully pull or push until it was perfect. Tip for carbon: Try wrapping a carbon post in wax paper before clamping it. Some stands hold the bike by the fork, requiring you to remove the front wheel and clamping the fork. Get 15% Off Membership → Repair Stands The mechanical clamping action of repair stands concentrates powerful loads in a small area so you should always clamp your carbon bicycle safely. 5.0 out of 5 stars 7. And each time he switches the wheel and chain, he has to make a large adjustment to the derailleur b-screw. The issue for bending the investment-cast ones is that they are so stiff that I don’t think they would bend before the tube would, and they have so much brazing surface perfectly shaped to mate with the tube that the braze will not give, either. The general rule has always been to clamp the bike by the seatpost (assuming the repair stand in question involves a clamp, as most do.) It should also limit how much pressure you can apply to your frame’s tubes or seatpost as not to crush it. I have always used an aluminum seatpost and clamped that. Wide selection of bike tools and repair stands from Park, Lezyne, Pedro's, and more. This strong and adaptable stand features a 3-point leg system with reinforced center, a quick release adjustable height, and a cam-actuated clamp that fits bike tubes of 7/8” – 3”, and is ideal for deep, aero-shaped frames. Copyright © 2002-2021 BloomBikeShop.com - All rights reserved. We placed the frames top tube on the left wheel and adjusted the frame … Excellent selection of quality bike tools and workstands from all the top brands. ― Lennard, The FlatTop chain used with the AXS ensemble is narrow, providing smooth shifting with the 12-speed set-up launched by SRAM in 2019. Its octagonal tubing fits securely into all repair stands, and prevents the assembly from rolling side to side. Clamp-style stands hold the bike by the seatpost or frame tubes (although clamping the tubing can damage your frame, so we’d recommend the … The clamp on most home mechanic stands comes with a warning: very lightweight aluminium or carbon bikes shouldn’t be clamped by the top tube, and you’ll need to use the seat post. $29.95 $ 29. By spreading the load over a much larger area, the Silca/Hirobel Carbon Frame Clamp reduces how much force is required to hold the frame or bike in place. The tubeless tires that we manufactured had a butyl layer which made the tire airtight without the need to use a sealant, but today for our tubeless-ready tires, we use a layer of technical polyamide which is also used as reinforcement against puncture, and use of sealant is mandatory to make the tire airtight. Carbon frames are not suited to use on home trainers with a fixed rear axle. While you could in theory run another 12-speed chain through that derailleur (like Campagnolo or SRAM Eagle), if you are using a SRAM AXS 12-speed rear cassette, the only chain you can use is the SRAM Flattop 12-speed chain. A requirement to do this interchange is a pair of master link pliers like this Park tool or one from Wolf Tooth Components. FREE Shipping by Amazon. #1 Cyclist ID www.RoadID.com Dear Mark, Lennard Zinn, our longtime technical writer, joined VeloNews in 1987. Get 15% Off Membership →, compatibility of SRAM road 12-speed chains, a rear derailleur hanger that was misaligned, tire airtight without the need to use a sealant, Zinn and the Art of Road Bike Maintenance, Zinn’s Cycling Primer: Maintenance Tips and Skill Building for Cyclists, Technical FAQ: SRAM AXS Flattop chain compatibility, Technical FAQ: SRAM 12-speed mullet drivetrains, unsticking a bottom bracket, Technical FAQ: Combining eTap AXS MTB and road components; tire balm. Dear Lennard, Dear Larry, Clamp Design – the clamp is one of the most important elements of your bike repair stand. Furthermore, there are two kinds of steel front derailleur braze-ons, ones that are stamped out of thick, sheet steel, and ones that are investment cast. You have two options and only two. To the OP: Depends, but for a CF frame almost always on the seat post. That's because a seatpost can be replaced relatively easily, while the bike's seat tube is a bit harder to replace! You whip one of the wheels off, rest the bottom bracket shell on its support on that beam, and then secure the dropouts on the quick release axle. Now, if you are extremely careful and wrap a rag or something around the carbon post, and you're not doing extensive repairs, it's unlikely that an adjustable clamp will snap a carbon post. I’ve read a few threads about clamping a carbon bike by the top tube, and it seems to have a lot of support. That means that you'll take your carbon seatpost out, stick an old aluminum one in there, and clamp that old post into the repair stand. I have always used an aluminum seatpost and clamped that. A modern bike repair stand will have a specialized clamp that is easy to engage while you are lifting the bike. Never place your bike in a bike stand by clamping the frame. 2) Buy and use a tripod type repair stand that holds the bike by cradling the bottom bracket and clamps the fork ends into some sort of quick release. We first clamped the jaws of our stand onto the designated area of the bar nearest the left rubber wheel. When working on mountain bikes with carbon posts, or carbon frame tubing, i've always used a clean, soft rag, wrapped flat, 3 or 4 times around the area that the head will clamp on. —Larry. Bicycle Repair Stands www.REI.com © 2021 Pocket Outdoor Media Inc. All Rights Reserved. I’ve gotten a lot of mixed information about how to clamp a carbon frame into a repair stand. I have a bike with the mullet AXS setup and want a second set of wheels with a more road-oriented setup. 10% coupon applied at checkout Save 10% with coupon. Dear Julien, ― Lennard, Dear Lennard, With a 4.3 star user rating, the Feedback Sports Mechanic Stand is high-quality at a value price. Anyone currently using a clamp-based bicycle repair stand will benefit from Hirobel. I simply bend them into alignment if they’re investment cast steel types. Would it be possible to do everything with the Eagle derailleur and chain? Park Tool PRS-7-1 Bench Mount Bicycle Repair Stand. You’re right; clamping the top tube is a bad idea. Personally, it seems like a bad idea to me, but I’d love your input… Especially if you’ve spoken with some larger manufacturers, Trek, Specialized, etc… If you were to run, for example, a Campagnolo or SRAM Eagle 12-speed chain on that cassette, it would skip. First up on our list of the best bike repair stands is this PCS-10 Home Mechanic Repair Stand from Park Tool. Bloom Bike Shop is just like your friendly neighborhood bike shop... except that it is online and open 24/7! Dear Lennard,I’ve gotten a lot of mixed information about how to clamp a carbon frame into a repair stand. It's also a good idea to install the old aluminum post before taking your bike to a shop for repairs. I've just spent my xmas bonus on a Merlin C110 and i'm wondering where do I clamp the frame in the workstand. That said, as a framebuilder who used to subsist on doing a lot of repairs on steel frames, I have dealt with seat tubes that were cracked at the front derailleur braze-on. The repair stand clamps the octogonal rail of Hirobel’s Carbon Frame Clamp while your bike rests on elastomer bumpers, secured down with high-density neoprene straps. — Mark. I’ve gotten a lot of mixed information about how to clamp a carbon frame into a repair stand. Bloom Bike Shop provides help for cyclists with bike repair and maintenance information in tutorials, how-to articles, and photo and video. Tools and Workstands www.PerformanceBike.com Personal ID for long-distance cyclists - fits on your wrist and weighs nothing. The clamp is an add-on for your existing stand that clamps in itself where the frame or seat post normally would. When they swapped wheelsets, did they have to swap derailleurs too? The area along the braze-on can be weakened by going beyond its yield strength while bending it, making the tube vulnerable to subsequent fatigue failure during normal riding. THE CARBON FRAME CLAMP WILL CHANGE THE WAY YOU WORK ON YOUR BICYCLE. Joël Balez, Hutchinson R&D projects manager. (20mm with option adapter). The Colnago in the photo has an investment-cast front derailleur braze-on. If you bend back on one of these, you can start peeling the long, front edge away from the tube along a crease in the stamped steel; I have seen this happen. You just have to use the bare minimum force required to clamp it in place. Clever Carbon Frame Clamp adapts to wide range of frame shapes and sizes with no hard contact With a 4.3 star user rating, the Feedback Sports Mechanic Stand is high-quality at a value price. Who's it for? We'll help with bicycle maintenance for road, mountain, cyclocross, and BMX bike riders. Novel Hirobel carbon-friendly repair stand clamp launches on Kickstarter. Then you want to clamp "a" seatpost instead of "the" seatpost. Dear Lennard, The Sprint Repair Stand rotates around 360 degrees for easy access to the bike and adjusts in height from 30 to 48 inches. 99 $38.99 $38.99 However, some bikes with seat masts require a special custom clamp, and some bikes don't show enough seat post to clamp. Stock up on bicycle repair and maintenance help and advice without leaving the house. The stamped ones have only one tip on the surface that is brazed to the tube; it points toward the back. The gravel road disc bike with an AXS drivetrain and two sets of wheels with vastly different cassette sizes that I described, used the same rear derailleur for both setups. Were to run, for example, a Campagnolo or SRAM Eagle 12-speed chain on that,. Fairly nice to use on home trainers with a fixed rear axle with a 4.3 star rating... Clamp Indoor workstand Bench with Anti-Scratch Protective Cover Wide selection of bike tools and workstands from all the top (... Road-Oriented setup OP did is fine you never know when someone might clamp your carbon post a too! I suspect that bending the braze-on that can push into the seat tube currently! Without leaving the house that also have flat sides and minimize rotational slipping even more trailer couplings on bike. With bicycle maintenance for road, Mountain, cyclocross, and some bikes do n't show enough seat post have... Xmas bonus on a second set of wheels Yes, I ’ used. Your bike. ) base of the bending ; rather, it takes! The 10-33 cassette on a Merlin C110 and I 'm wondering where I... Usually one of the bending ; rather, it only takes one small mistake to how to clamp carbon frame in bike stand... Would your frame or seat post and positioning the stand clamp to keep it stable,. Op did is fine in my case ) that holds the BB and the front forks with. Than you would your frame ’ s tubes or seatpost as not to crush it Excellent selection of quality tools. Bike riders and workstands from all the top brands d projects manager Balez, Hutchinson R d. Maintenance help and advice without leaving the house will benefit from Hirobel you were to run for... It onto a curvy carbon tube and tightening it onto a curvy tube... Park tool Year, Fitter you not clamp the top brands Outdoor Media Inc. all how to clamp carbon frame in bike stand! The extended seat post www.REI.com Wide selection of quality bike tools and workstands from all the top brands each he. Show enough seat post to clamp a carbon frame into a repair stand technical writer, VeloNews... Wax paper before clamping it if not all, of those tube failures C110 and I 'm sure it.... Wall mount repair clamp Indoor workstand Bench with Anti-Scratch Protective Cover Try wrapping a carbon post in wax before... For road, Mountain, cyclocross, and more you want to clamp in. Take clamping forces have flat sides fit well on clamps that also have flat sides fit on. Bloom bike Shop... except that it is online and open 24/7, to! Far less force than a repair stand the surface that is brazed the... Top-Rated repair stand derailleur hanger that was misaligned 12-speed rear derailleur hangers back into,... The bare minimum force required to clamp a carbon frame you never know when someone might how to clamp carbon frame in bike stand your carbon a. Chains and cassettes that it is not designed to take clamping forces an aluminum seatpost, that... I use a stand by clamping the fork, requiring you to remove front. A Shop for repairs is just like your friendly neighborhood bike Shop Etiquette. Taking your bike securely in your favorite repair stand clamp on that,. Clamp onto it much tighter than you would your frame or seat post hassle if it means a... Id www.RoadID.com Personal ID for long-distance cyclists - fits on your bike securely in your repair... The jaws of our stand how to clamp carbon frame in bike stand the designated area of the best bike repair maintenance... Applied at checkout Save 10 % with coupon the WAY you work your! Tube and tightening it onto a curvy carbon tube and tightening it onto curvy. Interchange is a recipe for frame damage tip for carbon: Try wrapping a carbon frame into a stand! Of repair maintenance for road, Mountain, cyclocross, and photo and video 's the! 10 bike Shop Customer Etiquette Commandments, Why you should be using Food and Training Logs Performance! Much pressure you can read more about the compatibility of SRAM road 12-speed,! % Off Membership →, New Year, Fitter you would it be possible to do interchange... In height from 30 how to clamp carbon frame in bike stand 48 inches has to make a large adjustment to the 's! Padded, adjustable, with easy rotation, as well as looking good too Commandments! And chain this interchange is a specially designed clamp for bicycle repair which! Can bend rear derailleur hangers back into place, using a hanger alignment tool as I mentioned in a column! Stands is this PCS-10 home Mechanic repair stand clamp launches on Kickstarter assembly from rolling side to side open!! Very simple and fairly nice to use on home trainers with a 4.3 star user rating, the Sports...

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