ltwoo erx electronic groupset

L-Twoo eRX electronic groupset – 105 Di2 obsolete now?

I wrote about L-Twoo a year ago, noting that this is a great Chinese company to watch. They released their first electronic groupset a while ago, which is not a great surprise. It may be weird to hear that for some people, but making an electronic groupset these days is probably cheaper, and easier. Reason is obvious: mechanical things, which includes bike parts, has a “feel factor”. A groupset may perform fine, but may not “feel right”. Mechanical parts clunk, sound, sends feedback. Some people get used to this feel for years, and feel awkward when they change the brand, or even the move to a different part from the same manufacturer. Mechanical parts are prone to wear, failure, cracks and lots of problems due to design, materials or production factors. Brifters are the real interface of a road groupset,… Continue Reading L-Twoo eRX electronic groupset – 105 Di2 obsolete now?

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shimano deore m5100 2x11 crankset

Deore M4100, M5100 and M6100 groupsets

Almost everybody getting serious about MTB’s probably started with a Shimano Deore equipped bike. When I was looking for an MTB decades ago, almost every bike shop adviced me a bike with a Deore groupset, because I’m heavy, and least, strong at the time. There seems to be a concensus about Deore is that, it’s the cheapest, proper groupset for “all-terrain” bikes. I did not share this view. At the time, I bought a cheap bike with a Tourney, then directly jumped off the Deore XT. Frankly, I only owned a Deore bottom bracket and a set of V-brakes and disc brakes, which I still keep. Am I impressed ? Absolutely not. V-brakes were good, I loved them, until one of the pads just fell off and lost. Hydraulic disc brakes? I know people loves them, but was the worst… Continue Reading Deore M4100, M5100 and M6100 groupsets

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ltwoo road r9 2x11 1

Ltwoo – Chinese groupset maker to watch

With the component / bike / parts shortage Covid-19 created, people turned their heads to somewhere else, the Chinese manufacturers. Unfortunately for both sides, the Chinese manufacturers did not use the opportunity, and we faced high prices, low volumes and long delivery dates. The main problem with Chinese manufacturers is, creating a brand identity, and also sales channels issues. I even can’t find their websites, if any at all, and they seem to run their business entirely on AliExpress. I don’t trust AliExpress for buying anything more than 100$ – there are lots of sellers, and even the most highest rated ones disappear time to time. Parcel prices rose to incredible amounts for my country, so that sometimes buying a SRAM component directly from USA seems to be cheaper than 3x cheaper Chinese part. I quit buying any bike related… Continue Reading Ltwoo – Chinese groupset maker to watch

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105 di2 RD R7100 full groupset

Shimano 105 Di2 groupset price and specs: R7100 Di2, revolution or coup?

The road cycling world was expecting a revolution when Shimano announced their mid-level but highly acclaimed 105 groupset will go electronic, with the new 105 Di2 groupset. 105 have been the groupset that defined price and functionality level, and feared the competition, being the best bang for the buck. Logically, the R7100 series could be the milestone that will democratize the electronic groupset for the masses. Why not? Shimano could destroy the competition, as they have advantage of mass producing fast and cheaper then others, especially Campagnolo. Even the FSA would not be relevant anymore – I doubt it is, now. Unfortunately, 105 Di2 groupset, at least the first iteration of it, R7100 series, have been a major miss for most. Shimano 105 Di2 groupset price: it is not cheap. The main selling point of mechanical 105 groupset is, it… Continue Reading Shimano 105 Di2 groupset price and specs: R7100 Di2, revolution or coup?

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classified powershift system

Classified Powershift, front derailleur killer ?

Everyone seems to have a problem with front derailleurs – SRAM swore to kill them with limited success. Now, Classified, a Belgian company tries something that is actually tried before. I’ve never seen any product they made before, and I highly doubt it’ s a bike component company. Rather, they seem like many companies come up with a good product and attract some funding. It’ s also a small company that looks to be growing. Frankly, I’m not interested in company stories, as they’ re stories after all, and I’ ve never been a fanboy of any company or any product.   Basically, Classified Powershift is a wireless -Bluetooth- operated, 2 speed gearhub without a freehub, instead, a proprietary cassette. Dubbed as “revolutionary” by bike media, it’s nowhere nearrevolutionary, as this was tried before, by a bigger and older company… Continue Reading Classified Powershift, front derailleur killer ?

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shimano deore xt hydraulic brake caliper m755

Groupset of the month: Deore XT (MTB-Touring)

Deore XT is my favorite, and Shimano’s first attempt to make an MTB groupset. It was first released in 1983, and still going strong, and wildly popular. For me, Deore XT is the way to go, except for the brakes. I love their hubs, love their rear derailleurs, love front derailleurs than anything else XTR included, but must say XTR shifters still beats them by a fair margin. Chains? I never buy fancy chains, but yeah, they are good too, at least Ultegra was, which was the same thing. XT cranksets are awesome, at least until now: they are bombproof, light enough, and not super expensive. When I was building my XTR-equipped bike, I skip XTR in 2 parts: one is the crankset, the other was the front derailleur. Cassette? Well…I used to have XT before. I had very good… Continue Reading Groupset of the month: Deore XT (MTB-Touring)

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Shimano 105 R7000 Compact Chainset 11 Speed crank

Groupset of the month: Shimano 105 History (road)

Shimano 105 is the upper-middle groupset for road bikes, released back in 1982. Also, Shimano 105 Di2 is the cheapest and most recent electronic groupset of the company. Mechanical version sits between lower end Tiagra and higher end Ultegra. In MTB-line, it sits between Deore and SLX. It came to life “105 Golden Arrow” in 1980, then renamed to 105. There are various claims why it was called 105, most interesting one is its “501” in reverse, the most-loved and well regarded Levi’s jeans in Japan at the time. It was below Dura Ace and 600 (later Ultegra) when released, for price-concious competitive riders. It’s considered as the entry-level racing-ready groupset, even today. It’s not clear when 105 got indexed shifting, AKA STI shifters, AKA brifters. I know for sure that Dura-Ace 7400 has 8 speed STI shifters, in 1990.… Continue Reading Groupset of the month: Shimano 105 History (road)

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campagnolo groupset anniversery

Does it make sense to buy racing spec groupsets like XTR, Dura Ace or Super Record?

It’ s common to use “durability”, “resilience”, “strength”, even “repairability” interchangeably. Formula 1 engines, depending on conditions, last as low as 1000 km’s. However, they have enormous strength – even the best performance car engine parts cannot stand those conditions a few seconds. An old Mercedes diesel engine can last over a million kilometers; they were extremely durable and repairable. For bike parts, that’s a bit more complicated, or straightforward, depending on how you approach the case. Bike components does not have to endure huge amount shock, except the …shocks. When you buy and wear out a bike component, it’ s hard to say when it becomes “useless” or “dangerous to operate”. If you’ re happily riding an old 7×3 Tourney bike, going out for short rides slowly and enjoying the scenery, this bike can serve you for life. On… Continue Reading Does it make sense to buy racing spec groupsets like XTR, Dura Ace or Super Record?

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sram force e tap axs 1x electronic groupset

Why electronic groupsets like Shimano Di2 are the future?

For years, many photographers insisted on DSLRs and ignored mirrorless cameras. Then, something very silly happened: camera makers started making mirrorless cameras with a DSLR “hunch”. Now, everybody is flocking to mirrorless cameras, selling their perfectly fine DSLRs for pocket money and grabbing mirrorless cameras at highly inflated prices. Why? People doesn’t like change. But when it’s unavoidable, or that change provides real opportunities, they follow the crowd. Electronic groupsets is good for ordinary people like you and me. The reason is not the groupset itself: they’re heavier and more expensive. Thing is, in Shimano-speak, they are capable of “syncro-shifting”. For those who don’t know what it is, it automatically adjusts gears so that each consecutive gear combination that is selected is the perfect combination. Let’s say you have hypothetical 3s chainrings, namely A,B,C; A being the biggest chainring. Then… Continue Reading Why electronic groupsets like Shimano Di2 are the future?

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deckas 1x red chainring shimano alivio

Pros and cons of 1x drivetrains

We all love the idea of a simplified bike. One of the promises of 1x drivetrains was “simplification”. Have you ever seen anything simplified in the last decade, regarding bikes? First, we had 130mm rear hubs for road, 135mm rear hubs for MTB’s. We have QR (quick release) working well for almost a half century, made first by Campagnolo. Now we have a “Boost” standard, and almost nobody can explain. 135×10, 142×12, 150×12, 157×12 and 165×12. Now we have 148x12mm Boost hubs. Which thru axle to get? That’s so complicated! Or, we have hydraulic brakes now. You can’t be sure if your new caliper will fit your disc. No universal pad area size… For tires, we have 26 inch for a long time. Then 27.5 is the king for a short period, lost it to 29, now 27.5 getting a… Continue Reading Pros and cons of 1x drivetrains

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shimano logo

Why Shimano is sooo common?

When I ride my first bike, many components of it were made by different companies. Nowadays, you can buy or build a bike that is built on Shimano or Sram components, minus the frame. Well, sort of – Shimano does not own a fork brand, yet. Shimano makes all drivetrains, plus under the “Pro” brand, they make saddles, seat posts, cockpit components, headsets. And you’ll look posh on your bike with Pearl Izumi clothing and shoes, which are also owned by Shimano. Sram owns Rock Shox to absorb bumps, Avid to stop you, Truvativ to pedal. Looks like Avid and Truvativ will cease to exist as discrete brand names as I do not see Avid branded components anymore, and its unique design already adopted by Sram brake components. Even Sram is big on MTB in the USA, where riders don’t… Continue Reading Why Shimano is sooo common?

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