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quick thread derailment, I just got my first ebike, a Fezzari Timp Peak (170mm f/r), claimed weight is 50lbs, its also rated for a dual crown. I was also concerned about the weight but spoke with all my ebike friends and they convinced me to go full power and I'm really glad I did, I only notice the weight when trying to get the bike off the ground but it's only marginally tougher and I'm getting a lot stronger in my shoulders, arms and back. I felt super comfortable on the first ride, Jumping, cornering, and going through rough stuff is a lot better on my ebike, so much traction and stability. After a couple rides on the Timp Peak I did back to back with my Spire and it felt nervous and twitchy and didnt corner nearly as well. Also, i get a killer workout still, i mostly ride in Eco mode which is about twice as fast as pedal bike working at same level, so i can do 4 laps on a trail I usually only do 2 laps on the pedal bike. I still want to ride a light Ebike but I'm incredibly happy with the full power, in eco i could probably get close to 50 miles and 6-7' feet of climbings.
Take a look at a set of RSC grade Codes. Either the lever or the calipers. They are black all over.
You don't paint tightly fitting surfaces (i.e. the two mating surfaces of the caliper halves, the inside of the caliper and the lever are not painted), but it's much harder to selectively anodize aluminium parts compared to selectively painting them. Plus it doesn't bring this issue of painted surfaces with it as it's a much more uniform surface finish thickness wise, is a lot thinner than paint, etc. And it's also harder than bare aluminium, so there's another benefit there (wear resistance).
TL;DR, RS and R level brakes (Code and Guide/G2) are painted, RSC grade stuff is anodized. Look at the innards of the lever where the piston enters the lever body and compare an R/RS to an RSC.
Haha I'm still not convinced!
I have 3 sets of code RSC brakes. All of them have various scratches - one of them in particular has a scuff on the caliper that has scraped off the top layer of paint, it then goes down to a more matt coloured black then through to the silver coloured alloy. This wouldn't happen with anodising?
The levers are almost certainly painted - anodising doesn't chip in the same way as paint. My RSC levers have chips that can only happen with paint. The reservoir cap is 100% painted since the dot fluid has bubbled the paint at the small pin hole there.
This is all on the outer side of the caliper though. From memory, the last time I changed the seals on one of the calipers, I think I remember noticing that the black 'paint' on the inside of the caliper half wasn't uniformly covering the entire inside of the caliper, it looked like a spray effect that gradually faded away to reveal the silver colour of the alloy, if you catch my drift!
I realise I might be sounding really argumentative here! I don't mean to, I'll be happy to shown otherwise! If they are indeed anodised, I'd be keen to hear what sort of process it goes through to give the finish they have. As they certainly aren't the same sort of black anodising on my cascade calipers or any other black ano parts I have!
I appreciate the Sram website calls the colour 'black anodised' but I cant help think thats not totally correct.
A picture is worth a thousand words…
A mass damper is tuned to match the fundamental frequency of the system. Or a component's fundamental frequency. So in this case, perhaps tuning it to the ff of the bars (which will be fairly high frequency) would take out the twang or buzz felt in the hands sometimes. But I think thicker and/or softer grips would probably be a more practical solution to this.
Mountain bikes already have suspension to reduce and control the max g loads vertically. Rigid bikes like gravel bikes might benefit more.
I wonder if a mass damper might be better applied elsewhere on a mountain bike. Everyone has experienced fork fore/aft flex. It's flexed aft by a square edged bump and springs forward after. Fore/aft oscillation of the front wheel is also pretty noticeable under heavy braking on uneven ground. Stiff forks (structurally not spring rate wise) usually keep this flex/oscillation from being so large as to interfere with a riders ability to control the bike. I once had a 140mm fox 32 and can absolutely attest that fore/aft flex and large magnitude oscillation can very detrimental to one's ability to control the bike. But even on decently stiff fork it would still be a benefit to reduce the flex and oscillation. That's a place where a mass damper might be more beneficial, if I was them that's where I'd try: at front axle perpendicular to stanchions.
Awesome! I’ve been drooling over it hah, great spec and I’ve heard good things about fezzari. Only thing holding me back is the ep8 motor and can’t tell if it’s actually something to worry about or not (lots of mixed reports in the interwebs).
deviate titanium via PR email
https://www.deviatecycles.com/blog2023?mc_cid=d5fa5976c2&mc_eid=a7a5ee6…
That thing is so freakin' gorgeous!
home builder takes a kona process rear end and mounts it up to his DIY steel front end (this is the end of his 8 part build series)
full playlist of entire "process" here - https://www.youtube.com/playlist?list=PLsNGMqpVGyvwQbCE5ojQijjU8QTGA9b1M
Always wanted to do this. Even got as far as buying an old 26" Giant Trance for the rear end to make a fs 4x bike.
I seem to remember someone doing something similar with a transition smuggler rear end and a diy steel front frame, but I can't recall where I saw the pictures. Any ideas?
Asa won the BME Durango on one and Chuck is ripping another enduro sled from Frameworks
Holy seat tube angle Batman. I think it’s just an optical illusion but the shock looks really funky for some reason. Anyone else see that?
Haha for sure, but it's a normal Float X2 - the piggyback is in front of the Kashima shaft which makes it look weird.
Gx Transmission will be released later today
Forty thousand shades of grey for the new GX, it's not gonna be pretty nor cheap. Oh well
Cranks look like something out of a Kinder surprise egg
Interesting that GX has the battery mounted in a new position thats probably a better more protected place than what the old axs mechs and other Transmission mechs have. Having said that, I've never actually had an axs battery knocked out of the mech in a crash but have heard reports of it happening. It looks like it would be much less likely to happen with this design if at all.
You would have thought that the xx1 transmission stuff would have benefited from this updated design first? Strange order to release it in.
I guess it means all the xx1 transmission early adopters will have out of date kit when xx1 gets updated to have the new battery position in a year or so.
May be it will be a GX-only afair cause GX is supposed to be the workhorse. As such, it will probably see extensive use in a lot more gravity-oriented steeds (170-180mm travel ones) and additional protection would only help its case.
Wishful thinking… don’t forget this is the bike industry. They probably just realized it could be better after XX and XO were already finalized and a project manager somewhere up the line said “better late than never”
All the info + our ride impressions of the new GX Eagle Transmission group: https://www.vitalmtb.com/features/wireless-workhorse-sram-gx-eagle-tran….
GX is as much of a workhorse as X0(1) is. The difference is the price point and the subsequent sales volumes.
New stealth Renthal cockpit found on build kit of the recently released Commencal V5 Meta.
Not sure if this has been spotted. Probably not super interesting but still a new bike haha not sure if it’s another catalog bike. But new vitus dh bike, from joe smiths video
they only jsut released this last month... Vitus Releases New Dominer 297 DH Bike - Pinkbike
Looks like a different bike to me, straight top tube on this one?
And let’s be honest they can’t replace that thing soon enough. That frame’s been knocking about under various brand names for about one million years.