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Nobble Added a reply to MTB Tech Rumors and Innovation
10/2/2025 8:05am New Bottlerocket announced. Full details on the 9th. https://www.transitionbikes.com/Bikes/Bottlerocket-History
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Nobble Added a reply to MTB Tech Rumors and Innovation
10/1/2025 10:40am Gotta keep that spec sheet weight down. 😆
Dave_Camp Liked a reply to forum topic MTB Tech Rumors and Innovation
10/1/2025 9:57am The holes let oil up to the upper bushing… those are already on current 38 boxxer. Someone patented the channel around the bushings. I’m sure fatigue is been calculated and tested. RS didn’t mess around with fatigue. Also curious how they’re making the dimples.
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Nobble Added a reply to MTB Tech Rumors and Innovation
10/1/2025 9:17am Looks like there are 4 holes in a row on the tube too. Some sort of air volume adjustment maybe?
Nobble Added a reply to Nerding out on Brakes shall we? Not another tech deraliment
10/1/2025 9:15am I had the LBS order me some from BTI yesterday.
Dave_Camp Liked a reply to forum topic MTB Tech Rumors and Innovation
9/29/2025 2:40pm It looks like that pivot snapped on the downtube first- in an area where you do get lots of rocks kicked up, so maybe it was damaged previously. On the other hand- it’s the downtube of a downhill bike- probably should be overbuilt. Edit- skip to 5 minutes: https://youtu.be/w5eMMf11uhM?si=Ed0-cZSZaSZxbBcZ
This forum topic has 30462 replies.
Nobble Added a reply to Nerding out on Brakes shall we? Not another tech deraliment
9/29/2025 12:59pm Do they still have the odd Hope geometry where the lever movement isn’t quite in line with the handlebar?
Nobble Added a reply to Nerding out on Brakes shall we? Not another tech deraliment
9/29/2025 9:54am Fanatik has GR4’s in stock now. BTI has both in stock now, so any US bike shop should be able to order them for you.
iceman2058 Liked a reply to forum topic Nerding out on Brakes shall we? Not another tech deraliment
9/29/2025 9:52am This hits the homepage tomorrow, but since it's live already, you forum guys get the early heads-up - here's our official EVO review (GR and TR both): https://www.vitalmtb.com/product/guide/hydraulic-disc-brakes/hope-techn….
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RiderMikeCheck1 Liked a reply to forum topic MTB Tech Rumors and Innovation
9/29/2025 7:55am I don't think it's a 'vent'. Would mist the rotor with oil! Possibly additional volume that you can tune by swapping out those 'things'. Looks like two bolts to remove it.
This forum topic has 30462 replies.
Nobble Added a reply to Nerding out on Brakes shall we? Not another tech deraliment
9/29/2025 7:43am It looks like the new Hope brakes are available at US distributors now. Anyone got their hands on a set yet?
Applejack Liked a reply to forum topic MTB Tech Rumors and Innovation
9/23/2025 11:37am
This forum topic has 30462 replies.
Nobble Added a reply to MTB Tech Rumors and Innovation
9/10/2025 8:53am My guess is that Box ran into issues with durability and cost/tolerances then decided it wasn’t worthwhile. I don’t think sprag/roller clutch type hubs are ever really going to be mainstream for MTB applications. Big cassettes and 29” wheels can put a ton of torque on a drive system. Sprag/roller clutch type hubs are really intolerant of bad tolerances and...
Nobble Added a reply to MTB Tech Rumors and Innovation
9/9/2025 8:10am You can destroy 3 GX DH derailleurs or 4 Zee derailleurs for that price 😆
ERGue Liked a reply to forum topic MTB Tech Rumors and Innovation
9/5/2025 5:35pm Disagree. Rebound circuits are speed sensitive. Most suspension kinematics use a progressive linkage, spring curve, or a combination of both. Therefore to create an ideal rebound circuit for a progressive spring curve, the circuit would need to be position sensitive. Meaning that more damping is created as the the wheel travels towards bottom out in order to counter act the increased spring rate at each position. Unfortunately position sensitive rebound circuits don't exist yet in MTB dampers. Yes agreed HBO exerts more force but since the force is converted to heat, not deflected back into the ground like a progressive...
This forum topic has 30462 replies.
Nobble Added a reply to Nerding out on Brakes shall we? Not another tech deraliment
9/2/2025 11:04am My number one complaint with the T4V4’s was a soft bite point. Have they firmed up the bite point with the new lever?
Slonschtor Liked a reply to forum topic MTB Tech Rumors and Innovation
8/30/2025 10:23am But it has to come with a prominent sticker at least, so it’s clear from the outside that this bike goes faster 😁
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Brian_Peterson Liked a reply to forum topic MTB Tech Rumors and Innovation
8/30/2025 8:13am I can't help but wonder how much of the TMD is a placebo effect.. The Pink Bike article that left 2 riders not being able to tell a difference was interesting.. Factor in the mud fest they're dealing with this weekend combined with the wide variation off hits they see, what do you tune it for? I think James Stewart summed it up best.. Racers are mental midgets. If they believe it's faster, it will be.. We've all heard Jordi talk about how simply wiping down a shock made it feel way better to some riders..
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DServy Liked a reply to forum topic FOX Podium Inverted MTB Fork - Questions, Answers, Reviews
8/29/2025 7:47pm It is my opinion that 3% "added" friction because fork misalignment is probably negligible because 3% is. Let's be honest, in a dynamic ride situation, the various level of twisting and buckling forces applied to a fork is going to misalign it. You referenced fox's floating air piston and the whole goal of reducing friction in an air spring; stating how somehow that goal is diminished due to fork misalignment, and I strongly disagree. As I mentioned before (somewhere on vital), air springs are particularly vulnerable to added friction issue due to the issue of needing to seal air AND...
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Nobble Added a reply to FOX Podium Inverted MTB Fork - Questions, Answers, Reviews
8/28/2025 1:28pm I used to go from the Bay Area (sea level) to Northstar (around 6600ft). You can absolutely tell the difference if you don’t bleed your lowers. It’s a pressure increase of about 3psi with no negative chamber to counteract it. Also, you have to use absolute temperature in your scenario. 50f to 80f is only like a 6% increase in...