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Thread: Ask the experts
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08-02-2020, 08:16 AM #1551
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08-02-2020, 08:28 AM #1552one of those sickos
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Strava nerd here. I've been pining forreal XC bike on occasion as well, but so far the Ripley is working for fairly frequent rides in the 50-70 mi range. I can usually squeeze into the top 10 on long climbs, but I think it would be a lot easier on a 22# bike. However, on those same rides I'm also sometimes doing top 5 DH times, and that wouldn't happen on the XC bike, our at least it wouldn't be fun.
Prior to this I had a Trance which I'd put a longer shock on to give it 157mm of travel. It really smoothed out the chunky stuff, but I don't think I was actually faster on it. Obviously it was much slower uphill. I've ridden a Warden, and I think that its really active suspension must be sucking energy, especially in hour 6.
Basically every time I think about it critically, I realize I'm in my mid forties and am riding for fun, so sacrificing fun and safety on the down isn't worth it for a couple % on the up. The 25 year olds will still prob be faster. For me the 120mm bike with good tires on wide rims seems to be the perfect balance.
But, you know, N+1.
Sent from my SAMSUNG-SM-T707A using TGR Forums mobile appride bikes, climb, ski, travel, cook, work to fund former, repeat.
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08-02-2020, 09:03 AM #1553
1.5" PVC as others mentioned. Make sure the "setting end" of the PVC is cut flush and smooth. Make sure you're race is on the right way, those Cane Creek ones kinda look like they can go the other way.
Or a flat head screwdriver with a big blade, tap alternating sides to make it go down evenly.
Or a trip to the bike shop and ask them to to smash it on for you.
If you're scared... watch this:
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08-02-2020, 09:15 AM #1554Registered User
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- Mar 2008
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get the race warm & put the fork in the freezer
Lee Lau - xxx-er is the laziest Asian canuck I know
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08-02-2020, 11:18 AM #1555Registered User
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- Feb 2008
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- Donner Summit
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Yeah, fork in the freezer and race in the oven (careful not to melt the seal), then pound away. Or just get a headset with a split race.
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08-02-2020, 11:20 AM #1556Registered User
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probably be OK with hot water but the oven might melt the seal
Lee Lau - xxx-er is the laziest Asian canuck I know
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08-02-2020, 11:29 AM #1557
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08-02-2020, 11:43 AM #1558Registered User
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- Aug 2008
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- Central VT
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- 4,808
Hope crown races are split. Just plop it on and go. I wish others would do this.
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08-02-2020, 11:45 AM #1559
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08-02-2020, 12:29 PM #1560
I haven't ridden either of those bikes, but my last all-day ride bike was 145f/135r travel and weighed 29 pounds. Many long rides (50 to 120 miles) with lots of vert (5 to 15k feet). Won a 24 hour XC duo race on that bike and an enduro race.
New rig is 140f/120r, and while it is definitely quicker on the uphills, I am probably going to miss the comfort and capability factor on the way down. On paper, the SB130 seems like the perfect bike, but at 30.5 pounds and rising...that might be too much for the all-around crown.
My guess is it won't replace a 150mm to 160mm bike if you are still planning on sending. But it sounds like you might keep the Knolly?
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08-02-2020, 12:29 PM #1561
I just cut a hole in my bottom freezer door with the sawzall so the fork would fit and stoked the fire pit. Should be rolling shortly
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08-02-2020, 01:21 PM #1562
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08-02-2020, 03:27 PM #1563Registered User
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- Mar 2008
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- northern BC
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08-02-2020, 03:47 PM #1564
Okay, I have one.
Neighbor has a Syncros Boost, straight pull hub on his Scott Ransom. He can’t find measurements online anywhere or from Scott. He is looking to build it up with a 32 (I am assuming here) DT 481 27.5 rim. 3 X.
Anyone privy to this information, Or have a good tip on calculating hub flange diameter with straight pull? We just need spoke lengths, obviously.Forum Cross Pollinator, gratuitously strident
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08-02-2020, 04:15 PM #1565
I think I am gonna keep the Knolly for now.
Revel Ranger 29? Anyone been on one? I know basically nothing about this brand.
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08-02-2020, 04:58 PM #1566Registered User
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- May 2008
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- SLC
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08-02-2020, 05:00 PM #1567
Good point. I will find out for sure ASAP.
Forum Cross Pollinator, gratuitously strident
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08-02-2020, 05:18 PM #1568Registered User
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Last edited by teledad; 08-02-2020 at 05:19 PM. Reason: Math is hard.
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08-02-2020, 05:20 PM #1569
No, because he wants to go from a 29” rim to a 27.5”.
So it’s more ‘complicated’.Forum Cross Pollinator, gratuitously strident
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08-02-2020, 05:35 PM #1570Registered User
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- Mar 2010
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pretty sure teledad is right...
(old erd - new erd) / 2 = x
old spoke - x = new spoke
dts spoke calc can do straight pull user defined, so if you have calipers can pop numbers in, theres one extra # to input for straight pull but its still pretty easy and dt has good diagrams of what to measure
but i think you can just do the math based on known #s
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08-02-2020, 05:45 PM #1571
You have to reverse engineer the numbers. So you measure the old spoke length and the old ERD.
Use DT Swiss spoke calculator and input a stock DT Straight Pull hub with that old ERD. See what the spoke length calculates as.
Compare the calculated spoke length with the old spoke length. Example: Calc = 285mm, old spoke length = 288mm.
This means that Syncros hub is 3mm longer than DT Straight Pull hub measurements.
Change the ERD in the calculator to 29er rim that you want to build and add 3mm to the actual calculated spoke length. It's a direct translation of Xmm, not a percentage.
Sorry that is pretty wordy, but I hope it makes sense.
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08-02-2020, 05:46 PM #1572Registered User
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- Feb 2008
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Yeah, 27.5 vs 29 shouldn't matter, it's just a bigger ERD difference.
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08-02-2020, 05:46 PM #1573
I don’t think I passed this advanced trig course in college...
Forum Cross Pollinator, gratuitously strident
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08-02-2020, 07:16 PM #1574
No grease on headset race. No split races. Don't overthink. All of that shit will cause issues later. They are made to be smashed on. Smash it on. You can always put an old stem on top of it if you want to protect the surface, and smash the stem with a conduit or PVC pipe.
I love the Park Tool headset race setter. It's one of my favorite tools that I own. When else do you get to use a hammer on a bike? And the sound changing from hollow to solid once it sets? So good.
You know you wanna smash it. So smash it.
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08-02-2020, 07:17 PM #1575
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