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Insights and Results from my First Build

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Insights and Results from my First Build

Old 02-06-16, 10:30 PM
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Inpd
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Insights and Results from my First Build

Hi,

Firstly, thanks for all your help. I just finished my first build of a Venturi Breezer with the 105 groupset. It took about 8 hours in total. It was much easier than I thought! Here is what I did and what I learnt which hopefully benefits others.

1. The bike has a press fit BB86. I used this BB Shimano Ultegra SM-BB72-41B PressFit Bottom Bracket | Competitive Cyclist and with a little grease I found an easy way to install it. I first installed the right hand size and pushed in the drive side crank all the way. Then I used the sticking out spindle on the other side as a guide to install the other side of the bottom bracket partially. I then used my home made press to push them both in all the way.

2. Installing the STIs was easy except for the gear cables. Thanks to @shelbyfv for pointing out page 12-13 of the Shimano dealer manual but its slightly wrong in that the area to push in the cable is way up there. You need to really pull up the hood covers a lot.

3. Cutting the steering tube was challenging. I used a hacksaw but it wasn't quite straight will try a tube-cutter next time. I cut the tube to be quite generous as suggested here.

4. The Shimano 105 products were amazing. Everything was so easy to install. The brakes came with pads, the cables were all greased, the STI kit had all the necessary cables etc.

5. I used the largest cog + largest ring + 2 links to trim the chain. Again the Shimano 5800 chain is a nice product.

I do have one question. The STI kit came with two silver cable caps that fit onto the brake cables. But I'm not sure which end the go? They don't fit into the 5800 brake unit do they go into the STI itself? There is also a bunch of other gear cable sheaths with nipples. I used two per the instructions but there are another 4? What are they for?
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Old 02-07-16, 01:24 AM
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I feel like some times they give you extra depending on how your frame may be designed. You might possibly have extra cable stops requiring extra ferrules. The housing that goes into the brake caliper should definitely have a metal ferrule attached. As for the other side that goes into the shifter, I just grind/file the brake housing flat and install like that, I don't believe ferrules go into the lever itself except for shift housing on 5600 and older.
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Old 02-07-16, 07:10 AM
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The metal brake cable ferrules won't generally fit in Shimano calipers of the past several generations. Probably they are for TT cable stops, maybe your bike doesn't need them? If you've used the new style 11 speed shifter ferrules everywhere they are called for, then you must have extra. Save them. Pics and ride report coming?
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Old 02-07-16, 07:34 AM
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Steerer tube cutting tip: use a piece of tape as a guide for a straight cut, and don't just cut straight through- rotate the steerer cutting a little at a time, until you have a straight " groove" all the way around. Perfectly straight cuts, without the need for special tools!
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Old 02-07-16, 07:56 AM
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Originally Posted by frankenmike View Post
Steerer tube cutting tip: use a piece of tape as a guide for a straight cut, and don't just cut straight through- rotate the steerer cutting a little at a time, until you have a straight " groove" all the way around. Perfectly straight cuts, without the need for special tools!
I use a small screw type hose clamp from the auto parts store for a saw guide.
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Old 02-07-16, 08:47 AM
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Originally Posted by Retro Grouch View Post
I use a small screw type hose clamp from the auto parts store for a saw guide.
The first time I cut a steer tube I used my non electric miter saw to get a square cut. A tubing cutter will only work if the steer tube is steel or alloy you should never try to cut a carbon steer tube with a tubing cutter
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Old 02-07-16, 09:23 AM
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Originally Posted by Retro Grouch View Post
I use a small screw type hose clamp from the auto parts store for a saw guide.
Yes. But may need to rotate it during the cut to keep straight.
If you are thinking about using a "tube-cutter" like what plumbers use... Don't.
They do not cut, they separate and leave a ridge.
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