How to Set up and Adjust Sliding Dropouts - Soma Wolverine
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- čas přidán 12. 09. 2024
- #shorts
If you are new to sliding dropouts, they may be confusing at first, but it is a pretty simple design. The chain is tensioned by tightening two bolts in the front of the sliders. To make things simpler, the disc brakes on the Wolverine frame slide with the rear axle position. The key is to maintain axle alignment. These sliders are called horizontal body dropouts and they make axle alignment easy. To do this with a geared bike, simply put your chain into the large chainring and the largest cog. This is effectively your tooth capacity. This should be no greater than the tooth capacity of your rear derailleur. For my Sram GX, this is 47 teeth. More on that later in the next video. Next, open the two bolts until each are flush with the slider. Then tighten the bolts the same number of rotations until the chain is properly tensioned. I’ve used expensive chain tensioned gauges and I’ve linked the one I use in the description, but I find it just as easy to set the tension by feel. It will be necessary to reset your brake pad position after adjusting your dropouts. If there is enough interest, I’ll do a video on that process.
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The SRAM GX 10 speed rear mech is my all time favorite! I have one on my blue Wolverine setup 2x11. Gonna see if you ever made that video!
That build with the GX was a fun build. It’s the first video I put on this channel.
This doesn’t explain the why & how of the slider bolts. Presumably the position of those sliders is determined by factor(s) that would have been helpful to know. And the torque of those bolts.
That’s not the intention of this short video. I have a full build video that covers that. Buuuuut: the why depends on your setup and needs. The beauty of sliding dropouts is their versatility. When you say “how” what are you asking? I show the how in this video. Do you mean the mechanical engineering of it? That’s beyond the scope of this video that aims to only show how to adjust sliding dropouts. Determining the position of the sliders is covered in a full length video on this channel and beyond the scope of this short. Short answer: it depends on your build and your setup including frame size, drive train, wheel size, and tire size. Torque is covered in another video on this channel and greatly depends on the size and type of bolt. For the steel bolts in this video, it’s 17-19ft/lbs.
Great video, similar deal to tightening a chain on a motorcycle 👍
It really is! I’m going to do a bunch of crossover motorcycle-bicycle videos this summer. Top of that list is how motorcycling made me a better cyclist. This is especially true with counter steering.
Super helpful
I’m glad it helped out, Thomas!
are those body dropouts welded to the frame or just screwed in?
Doesn't moving the drop-outs backwards adjust the handling of the bike also?
It does! Thanks for pointing that out. Adjusting the dropouts from one position to another will change the way a bike handles. This affects both the rear center (distance between the rear hub and bottom bracket) and the wheelbase (distance between front and rear hubs). Changing the rear center affects weight distribution which impacts climbing. The impact on changing the overall wheelbase length really depends on the rest of the bike’s geometry, but, in general, a longer wheelbase equals a more stable bike. A shorter wheelbase is better for maneuvering around tight corners. Well, maneuverability in general, but long wheelbased bikes are most noticeable in tight corners like you’d find on single track or in the middle of a gravel race with tons of other riders cornering with you. For my example here, I had a predetermined setting because I already measured chain length based on the the chain stay length and my drivetrain setup. Thanks for watching!
If I am using a derailleur then what is the purpose of adjustable dropouts?
Nothing really if the frame brand and model isn’t important to you. What sliding dropouts are good for is if you want versatility in your build. I can swap out different sliders to build nearly every type of drive train from a standard chain with a derailleur to internal geared hub like a Rohloff, to a single speed or fixie. If you have a frame with a split seatstay like this Wolverine, you can build a single speed belt driven drivetrain. I can even swap out sliders if I want to switch axles from quick release to thru axle or vice versa. I love this Wolverine frame because of its versatility. I’m changing out the build at the end of the month to a single speed gates belt drive.
@@GreatEgretAdventure i purchased the bike with a fixie slider and i want to replace them into one with dereailleur. any leads where i can order them?
@@fyzeealim2204 You can buy them directly from Soma: www.somafabshop.com/shop/category/frames-frame-parts-bicycles-frame-parts-dropouts-derailleur-hangers-848
But it looks like they are out of both 135mm QR and 142mm TA. If you need 135mm QR I can sell you my set that I likely won't use.