2021

Jamis Boss Coaster Step-Over

Name: 2021 Jamis Boss Coaster Step-Over
Brand: Jamis

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Colour / Vivid Violet

Size / 14-inch, 18-inch

At a glance

The 2021 Jamis Boss Coaster Step-Over is an city aluminium road bike. It is priced at $360 USD and comes in a range of sizes, including 14-inch, 18-inch. The bike is part of Jamis's Boss Coaster Step-Over range of road bikes.

- LEGENDARY FRAME DESIGN
These one-piece single-loops stays with trailing dropout plate have been a Boss and Taxi signature since 1980. Reducing the number of rear triangle welds makes these frames stronger and stiffer. And we don’t have to swage the tubes to a smaller diameter to mate with standard tabbed dropouts, allowing the stays to remain near constant in diameter, yielding an even stronger frame with a bigger, bolder style.

LIGHTWEIGHT
Many cruisers weigh well north of 40 pounds. Not so with the Boss and Taxi! Because nothing gets more uncomfortable faster than having to pedal more weight than necessary, we’ve pared as many grams from these bikes as we could.

Starting with the lightweight aluminum frame and a parts pick that’s nearly all lightweight alloy parts. The results are bikes just north of 30 pounds that are easy to pedal and more fun to ride.

PERFECT FIT
All Boss frame sizes (and there are six to assure the best possible fit for greater comfort and more secure handling) offer an extra-long stem quill and head tube and hi-rise handlebars for a comfortable, upright ride position

EASY TO SIT ON
The Boss Saddle is as plush as it gets –

- quilted top, wide body, fully stuffed, double-loop springs –

- and is offered in both male and female specific lengths and widths. The Taxi saddle is as durable as it gets, with an extra-thick 3 mil cover to resist puncture, a flat top that won’t pool water when the Taxi is parked in the rain, box section rails that will never bend, and double-loop springs that comfortably support passengers.

SMOOTH ROLLING TIRES
Our comfort tires have been designed to roll smoothly on pavement, but offer a large 2.35” footprint so that rides on park paths can be managed securely. The additional benefit of that big footprint is larger air volume in the tire and tube, which results in lower air pressure for a more comfortable ride than tires with smaller volumes and higher air pressures.

COMFORTABLE STEERING
Our cruise-control handlebars were designed to promote a comfortable no-weight-on-the-wrists riding position. With just the right sweep and rise, these handlebars meet the rider’s hands without requiring a forward bend at the waist, relieving pressure on the back of the neck. Handlebar width has also been carefully calculated so that when steered from left to right it does not contact the rider, unlike many other cruiser-style handlebars.

RUST RESISTANT
Many of the parts specified on our Boss and Taxi are made of aluminum to save weight, but also to help preserve the finish of the bike. Aluminum parts include the seat post, seat clamp, stem, rims, front hub, kickstand, and crank arms. We’ve even specified a specially treated chain on the Taxi that protects the chain against rust in even the harshest conditions. In fact, this coating increases the rust-resistance of the chain up to 500 times that of a regular chain.

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Where To Buy

Jamis

Jamis Boss Coaster Step-Over

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Reviews

Specifications

Frameset

Frame

Diamond frame design with 6061 aluminum oversized tubing, sloping top tube design, water bottle bosses, alloy kickstand, and painted steel chainguard

Wheels

Hubs

Front: Alloy nutted hub
Rear: Hi-Stop CB
Tires

[F] CST Metropolitan Palm Bay, 26" x 2.35

Drivetrain

Chain

KMC Z410NP, silver
Crank

Forged alloy crank, 170mm alloy
Bottom Bracket

Sealed cartridge, 68 x 122.5mm

Components

Brakeset

Hi-Stop coaster brake
Handlebar

Jamis Cruise-control comfort bar
Saddle

Boss Cruiser design with extra padding and heavy-duty, double-loop springs
Seatpost

Alloy micro-adjust, 27.2 x 300mm, with 31.8mm alloy clamp and cromo seatpin
Stem

Alloy hi-rise, 180mm quill, 100mm extension, with removeable 2-bolt cap
Grips

Comfort style
Headset

Internal cup, threaded, 1 1/8”

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FAQ

Q: How much is a 2021 Jamis Boss Coaster Step-Over?

A 2021 Jamis Boss Coaster Step-Over is typically priced around $360 USD when new. Be sure to shop around for the best price, and also look to the used market for a great deal.

Q: What size 2021 Jamis Boss Coaster Step-Over should I get?

The 2021 Jamis Boss Coaster Step-Over comes in sizes 14-inch, 18-inch. After measuring your height, use the size chart below to find the typical Jamis Boss Coaster Step-Over size for your height. Remember that these sizes are a general guide and bike sizes can vary between riders and bikes. The best way to find your size is to go for a test ride.

Rider Height (cm)	Rider Height (in)	Frame Size
148cm - 158cm	4'10" - 5'2"	XS
158cm - 168cm	5'2" - 5'6"	S
168cm - 178cm	5'6" - 5' 10"	M
178cm - 185cm	5'10" - 6'1"	L
185cm - 193cm	6'1" - 6'4"	XL
193cm - 198cm	6'4" - 6'6"	XXL

Endurance

General

Gravel

Touring

Triathlon

Cyclocross